PGP Email

Here, we discuss what is a PGP email, how to encrypt and decrypt a PGP email, and much more regarding PGP data encryption. PGP stands for Pretty Good Privacy and even though it has pretty good in its name, PGP encryption is much more than being just pretty good. Essentially, PGP data encryption is a security program you can use to send a PGP email or encrypt and decrypt email, as well as to authenticate your emails, send PGP messages, and PGP files through digital signatures.

PGP (Pretty Good Privacy) encryption was developed and designed back in 1991 by Paul Zimmermann. At the time, PGP encryption software was operated and owned by PGP Corporation. In 2010, the rights to PGP software were bought by Symantec. For hackers and cybercriminals, email is one of the prime hacking or attack methods as those who know how can easily fake messages using individuals’ identities and names.

PGP data encryption was designed and developed to solve these messaging security issues. Even though PGP encryption is used to encrypt files and text messages, it is mostly used as a way of enhancing the security and privacy of email by encrypting the content. Essentially, PGP emails are encrypted emails that nobody from the outside can access. In other words, PGP emails can only be accessed and viewed by the sender and the intended recipient.

PGP encryption software was the very first public cryptography tool available to everyone for free. Back in the day when it just appeared on the scene, it was primarily used to enable individuals to communicate safely and securely on computer servers. Later, PGP turned into the de facto email security and privacy standard and has been widely used not only by organizations but also by individuals who value their safety.

How PGP Email is Encrypted?

Just like many other data encryption technologies out there, PGP encryption relies on a combination of different hashing, data compression, and of course, powerful cryptography techniques. In other words, PGP emails are emails that have been compressed, hashed, and encrypted. PGP encryption is most similar to Kerberos, SSL (Secure Socket Layer), and SFTP (Secure File Transfer Protocol. Kerberos is responsible for authenticating data, Secure File Transfer Protocol secured data as it travels, and Secure Socket Layer secures and protects websites.

PGP emails arealways encrypted with the public key and in the PGP encryption system, every individual user has his or her unique public encryption key and this is key is shared among them. A PGP email also relies on a private key and private keys are never shared among users. Essentially, every user has a private key they keep secret and public encryption keys they share. An email is encrypted when a sender shares his or her public key. A PGP email is decrypted when the intended recipient accesses the email using his or her private key.

This means that a PGP email relies on both public-key and private-key cryptography and uses both asymmetric and symmetric data encryption technology to protect the content of emails as they travel from senders to recipients across networks. Every PGP email is protected and secured within three major steps:

PGP software or tool generated a one-time, random public key or encryption algorithm and this randomly generated algorithm protects PGP emails as it is always a completely random encryption session key nobody can guess

In the second step, the randomly generated session key or public key is encrypted using the PGP email’s recipient’s unique public key. Since session keys are also encrypted, a PGP email is protected during its transmission. The recipient of a PGP email shares his or her public key with individuals they want to get PGP-encrypted emails from.

The sender of a PGP email submits his or her randomly generated session key and the recipient of a PGP email uses his or her private encryption key to decrypt a PGP email or message.

PGP Email – Hashing, Data Compression, and Cryptography

Encrypting long emails or messages can take a while but with PGP encryption, the process is much faster and it relies on a faster encryption algorithm that includes data compression techniques. Since data techniques are used, encryption messages and emails save not only transmission time but also some space on your device. PGP encryption also fortifies cryptographic security. It is also worth mentioning that the public encryption key encrypts the shorter variant of the full emails and messages that have been PGP encrypted.

More specifically, the recipient of a PGP email gets both of them and uses his or her private key to access the shorter session key and finally decrypt the full PGP email or message version with all content included. In addition to data compression techniques, PGP encryption also relies on other efficient algorithms which create mathematical summaries also called a hash and these mathematical summaries are required to share digital signatures.

How to Send PGP Emails?

There are two major versions of PGP that rely on public-key cryptography including RSA (Rivest-Shamir-Adleman) and Diffie-Hellman. RSA relies on the IDEA (International Data Encryption Algorithm. Individuals create and share public keys and their public keys are needed in order to decode messages. RSA is extremely safe and almost unbreakable but encrypting messages using this encryption technology is very slow and it is not widely used for encrypting emails.

The Diffie-Hellman PGP version encrypts messages and emails with a short key with the CAST algorithm. It also easily creates hash codes thanks to the SHA-1 (Secure Hash Algorithm). To send a PGP email, you can use an excellent variety of PGP encryption software and tools out there and one of these is GNU Privacy Guard. You can also use Hushmail that is extremely safe and very easy to set up and get started. Other great options for sending your first PGP email include Claws Mail, EverDesk, eM Client, and The Bat that works on Windows devices.

If you are using a macOS device, you can send PGP emails with Apple Mail GPGTools, Canary Mail, Mutt, Enigmail, and Thunderbird. There are also PGP encryption tools for Android and iOS devices you can use to send your first PGP email such as iPGMail, PGPro, Safe Easy Privacy, R2Mail2, K-9 Mail OpenKeyChain, and FairEmail.

PGP Message

In this PGP message article, we discuss PGP (Pretty Good Privacy), how it works, and PGP security. We also discuss how to create a PGP-encrypted message using different tools and apps out there. PGP is a powerful data encryption program crafted by Phil Zimmermann and Symantec over thirty years ago in 1991. This encryption program guaranteed authentication and cryptographic privacy for various kinds of online communication.

Essentially, Pretty Good Privacy encryption programs are used for encrypting and decrypting emails, texts, disk partitions, and files with the main goal of increasing the overall security of various online communication channels. PGP text messages are messages that have been encrypted with a PGP data encryption program. The popularity of Pretty Good Privacy is based on two crucial factors and one of them is the system’s freeware encryption platform.

The second factor is related to Pretty Good Privacy’s encryption technology. More specifically, PGP relies on both public-key and symmetric encryption. This means that you can send a PGP message to someone you have never communicated with before without sharing private encryption keys. PGP and other popular, powerful encryption systems such as SSL encryption that secures most websites.

How PGP Message is Encrypted?

Many of these encryption systems just like PGP rely on a combination of two different types of data encryption including public-key and symmetric encryption. In symmetric data encryption, only one secret key is required to encrypt text messages and files and to decrypt them. The communicating entities using this type of data encryption have to exchange the secret key in order to decrypt messages.

In asymmetric encryption, one private and one public key are used for encrypting and decrypting and this is the biggest difference between symmetric and asymmetric encryption. Asymmetric encryption is also called public-key cryptography as public keys are used alongside private keys. PGP text messages rely on both public-key cryptography and symmetric encryption to add that extra layer of securing to text messages, files, and emails shared online.

The main question is, how PGP message is encrypted and decrypted. To understand how a PGP message is encrypted and decrypted, let’s look at one example. There is a user A and he or she wants to communicate with a user B by sending a PGP-encrypted message. User B will generate a private and public key. User B will share the public key with user A and save the generated private key. User A will use the public key to create a PGP message or to encrypt his or her message. User A will then send this PGP message and User B relies on his or her private key to decrypt this PGP message.

PGP Message – Encryption and Decryption

There are a bunch of PGP encryption tools and apps and most of these work the same as they rely on the same PGP encryption technology. PGP encryption message, email, or file always starts with Pretty Good Privacy generating a session key relying on one of two crucial algorithms. This session key is a massive sequence of randomly generated numbers and it is used just once. The session key is also encrypted using the intended recipient’s public key.

The public key used is tied to an individual’s identity and multiple people can use the same public key to send a PGP message to the recipient. Using his or her private key, the intended recipient of a PGP message decrypts it and accesses the content of the message. Essentially, PGP data encryption combines the security of asymmetric cryptography with the efficiency of symmetric encryption since encryption keys get encrypted as well.

Now, you may wonder why encryption keys get encrypted as well and the answer is quite logical. Public key cryptography or asymmetric encryption where the recipient and the sender use the same key is much slower when compared to symmetric encryption. Moreover, in symmetric encryption, senders must share encryption keys with the intended recipient in the form of plain text and this is not the safest option. This is why before sending a PGP message, symmetric keys (used by both sender and recipient) are encrypted using the public-key encryption technology (asymmetric encryption).

PGP Encrypt and Decrypt Messages

To send a PGP message, there are several steps to follow. As mentioned in the previous section, a PGP message uses two different types of encryption keys to encrypt and decrypt text messages including the private and the public key. To encrypt, the public is required and this encryption key is shared with the sender. The private key is also kept secret and is not shared with the sender. The private key is required to decrypt a PGP message.

To send a PGP-encrypted message, you need PGP encryption software that will assist you with encrypting your text message. There are many different PGP tools you can use to encrypt your text messages such as OpenPGP, Gpg4win, and GNU Privacy Guard. Great free PGP encryption tools for Windows are pfPgpEncryptor, Kleopatra, Go Anywhere OpenPGP Studio, PGPTool, and VeraCrypt.

You need to download one of this software to get started. One of the simplest is most certainly Gpg4win, so if you do not know much about PGP encryption, we recommend you get this tool. Once you have downloaded and installed Gpg4win or some other PGP encryption software, open it and click on the Generate Key Now button.

You can also generate new encryption keys by heading to the Keys section and clicking on the New Key button. You will be asked to provide your name and you can use your real name or fake. You will be asked to provide your email and you do not have to use your actual email address. Once done, you proceed to create a backup of your encryption key. This is an optional step. If you create a backup of your key, you will be asked to set a password and set a location.

Once you have generated your new encryption key-pair, right-click on it and choose Copy and your newly generated public key will appear in your clipboard. You can send this public key to anyone and receive a PGP-encrypted message. No matter what you do, make sure you never share your private key with anyone. If you will be sending a PGP-encrypted text message, you need his or her public key to get started. Once you have the key, you save it before importing it to your PGP encryption software.

Access the key by clicking on Clipboard. In the text area, type your text message and press the Encrypt button. Once here, click on the public key of the individual you want to send a PGP message. On the following pop-up, click yes and you have successfully encrypted your message. To decrypt a PGP message, the message must be encrypted with your unique public key. Once you have your PGP-encrypted message, open your clipboard and paste the message there. Choose decrypt and provide the password you have set up and the message has been decrypted.

WhatsApp Vs iMessage

In this detailed WhatsApp vs iMessage guide, we take a look at these two extremely popular and widely used instant messaging services, we take a look at their security and their features to see how they compare with each other. In 2021, there are over two billion individuals in the world who use WhatsApp to communicate with friends and family members. iMessage is a popular instant messaging service owned and operated by Apple Inc.

It was launched in 2011 and unlike WhatsApp that works on both iOS and Android devices, iMessage is only available on Apple-developed platforms including iOS smartphones, macOS, watchOS, and iPadOS devices. When looking into WhatsApp vs iMessage popularity, WhatsApp most certainly wins since it has over two billion users and iMessage is used by significantly fewer people and this does not come as a surprise as iMessage only works on Apple devices.

WhatsApp was launched in 2009 so four years before iMessage being introduced. The instant messaging service was created by Jan Koum and Brian Acton who at the time worked for WhatsApp LLC. In 2024, WhatsApp was acquired by Facebook Inc. This super exciting WhatsApp vs iMessage battle continues, so let’s check what the two iconic instant messaging services offer to their users.

WhatsApp Vs iMessage – Their Usage and Availability

Not so long ago, we used to communicate via SMS, and even though SMS is still very much in use, Short Messaging Services as SMS stands for, is most certainly overshadowed by instant messaging services such as WhatsApp, iMessage, Telegram, Signal, WeChat, Line, Viber, and other. Back in 2009, Brian Acton and Jan Koum who used to work for Yahoo came up with a brilliant idea, an instant messaging app thanks to which people would be able to send messages online without spending a dime.

At the time, the popularity of smartphones was on the rise and both App Store and Google Play Store had started to attract more visitors. Their idea became the most used instant messaging service today, WhatsApp. Only two years later, Apple released its instant messaging service iMessage. So, what are the WhatsApp vs iMessage key differences and similarities?

Back in 2009 when WhatsApp was launched, it was only available for download on the App Store, and its first version was only available to iPhone users. In 2010, the company behind WhatsApp started offering support for Android OS, Symbian OS, and Blackberry devices. Fast forward to 2021, WhatsApp can be downloaded on a whole range of devices including Android and iOS-powered smartphones and tablets and Windows and macOS devices.

As previously mentioned, Apple’s iMessage instant messaging service was exclusively designed for iOS smartphones. At the time of its initial release, the service was only available to users of iPhone devices while today it can be downloaded to watchOS, macOS, and iOS devices. When it comes to WhatsApp vs iMessage usage and availability, WhatsApp wins since its cross-platform service is available to everyone regardless of which device use. At the same time, iMessage is only available to Apple users.

WhatsApp Vs iMessage – Their Core Features

When it comes to WhatsApp vs iMessage and their core features, these instant messaging services are quite similar. WhatsApp users can send voice and text messages, make video and voice calls, as well as share files, documents, videos, images, and other content. iMessage users can also send text messages, share videos, and images. Both WhatsApp and iMessage users can share their location and send stickers as well. When it comes to sending and receiving instant messages on WhatsApp, the service relies on network connectivity.

Speaking of network connectivity, there are two options Wi-Fi and mobile data. In other words, to send and receive messages using this service, users must be connected to the internet either via Wi-Fi or 4G. The main issue with using mobile data and WhatsApp is that it can get quite expensive at times especially when sending documents, images, or videos. Moreover, if users are connected to a lacking Wi-Fi, WhatsApp may not be working properly and they have to wait for a more appropriate Wi-Fi connection.

When it comes to Apple’s iMessage, the instant messaging app also relies on both Wi-Fi and mobile data connectivity. However, if these options are not available, iMessage can be used as any other standard SMS service and this is a huge plus.

Back in 2015, WhatsApp allowed PC users to access its instant messaging service with at the time newly launched WhatsApp web client. This web client can be accessed via all web browsers such as Edge, Opera, Chrome, and Mozilla Firefox. For the WhatsApp web client to work, users need to connect their portable devices with WhatsApp apps installed through the internet. On the other hand, iMessage does not have a web client so PC users cannot use the service on their Windows PCs and laptops.

What About Their Security?

There are no huge differences between WhatsApp vs iMessage security features. Both WhatsApp and iMessage rely on the most advanced SSL data encryption protocols and algorithms to make sure that all messages sent using their services are encrypted at all times. More specifically, WhatsApp employs end-to-end encryption technologies so you can rest assured that your messages sent using the service can only be accessed by you and the intended recipient.

iMessage also relies on end-to-end encryption technologies to protect its user’s FaceTimeand iMessage conversations across all Apple devices. Both WhatsApp and iMessage are secure with not only text messages being end-to-end encrypted but also images, videos, and other content their users share using their apps.

Despite their subtle differences, both iMessage and WhatsApp are extremely useful. They allow you to share images, videos, and much more with friends and family safely and they allow you to communicate with everyone you want in real time. Apart from sending and receiving messages from one user, both iMessage and WhatsApp let you communicate in group chats.

Add to this end-to-end encryption, there is no wonder why both instant messaging apps have their loyal fan bases so this WhatsApp vs iMessage battle has no winner as both instant messaging services do the work the right way. If you want to see how WhatsApp compares with other services of this kind such as Signal, Telegram, WeChat, Line, and Viber, make sure you check out these articles as well.

Secretive Apps

Secretive apps including those that we will discuss here have started a completely new era of keeping things private. Secretive apps have made it super easy to hide phone calls, text messages, files, images, and much more you want to keep away from the prying eyes. Most used are secretive apps for text messages that rely on end-to-end encryption to make it virtually impossible for intruders to access your text messages.

Secretive apps that hide and keep safe private photos, notes, and files are also popular. The best part, all of these apps work on both iOS and Android devices while many of them have separate apps that work on desktop devices and laptops. The bottom line, with secretive apps you can stop worrying about your personal, confidential text messages, photos, and everything else you want to keep safe as these apps make sure everything stays private. So, let’s take a look at the best secretive apps for hiding photos and videos.

The Best Secretive Apps for Hiding Photos and Videos

Everyone has photos that are meant to stay private and secure. However, almost everyone has faced the issue of keeping such photos private on their smartphones. Not once but many times, people scrolling through your gallery come across photos you do not want to see them. With the best secretive apps, this is not a problem and some of the best options are Private Photo Vault, Keepsafe Photo Vault, and Clock Secret Vault.

Private Photo Vault

The Private Photo Vault secretive app for hiding photos and videos is available on the Google Play Store and the App Store so it can be downloaded on both Android and iOS devices. The app was crafted by Legendary Software Labs LLC. With the app, you can protect your photos and videos in a pattern or PIN-protected folders. Private Photo Vault also features other great security tools that come in handy if your smartphone gets stolen.

In this case, the Private Photo Vault app can take a picture of the thief as well as reveal the thief’s current location via GPS. Besides, the app comes with a bunch of in-app edit features you can turn to enhance the brightness and contrast of your photos. The latest version of this secretive app introduces up to eight-digit passcodes, cloud vault for premium accounts, encrypted backup, the option to sync videos and photos between different devices, space saver tools, recovery options, face down lock for premium accounts, and a brand new, sophisticated design.

  • Eight-digit passcodes
  • Encrypted backup
  • Space saver and sync options
  • Recovery of deleted files
  • Face down lock

Keepsafe Photo Vault

Keepsafe Photo Vault crafted by KeepSafe Software Inc. is another excellent secretive app for hiding photos. Unlike many other secretive apps of this kind, this one has an extra protection layer as it never shows up in your list of recently used apps. Like Private Photo Vault, the app uses the most advanced, military-grade encryption technology to secure your most personal photos with a fingerprint, pattern lock, or PIN. The Keepsafe Photo Vault app also locks automatically when your smartphone is facing down.

Users of Keepsafe Photo Vault can also preserve special photos and memories, protect copies of their credit cards, IDs, and driver’s licenses. With the app, it is also possible to organize personal documents. The latest version of the app made it easier to upload, access, and organize photos. The latest version also added photo backup options, custom albums, an integrated camera so that photos can be taken directly from the app, and sync options to keep photos and videos safe across multiple devices.

  • Great UX and design
  • User-friendly interface
  • Sync and backup options
  • Tablet and phone support
  • Integrated camera

Clock Secret Vault

Just like those two previously mention secretive apps, Clock Secret Vault is downloadable to iOS and Android devices. This is one of the best apps of this kind for hiding photos and videos and it was dipen narola. Besides helping you keep safe your private videos and photos, with Clock Secret Vault, you can also hide various sensitive apps, protect the privacy of these apps, freeze various kinds of rogue apps, and even boost the speed and performance of your mobile device.

All of this is done by the Clock Secret Vault secretive app that even lets you decide where you want to keep your hidden photos and apps, in the cloud storage or local storage. With Clock Secret Vault, your sensitive photos, videos, and other sensitive content are password protected. What is even more, the app’s icon looks like a regular clock icon, so nobody will ever know that this is a secretive app. A bunch of other great features is included as well such as private photo galleries, secret photo albums, easy exports and imports from your standard gallery, file sharing options, photo, and video vaults, and password-protected photo albums, and password-protected app entry.

  • Private image and video galleries
  • Password protected albums
  • Fire sharing options
  • Compatible with different video formats
  • Easy photo and video viewing

Other Great Secretive Apps

In addition to these great secretive apps that work on both iOS and Android devices, there are several other great options to check out including Best Secret Folder that works on iOS devices. It also hides your videos, photos, and files within a secured, password-protected folder. Secret Calculator is another iOS app that uses a decoy icon and hides everything from photos and videos to URLs, and GIFs. Secret Calculator also offers many other options such as double protection, album and photo locks, and even editing tools.

The Secret Photo Album secretive app also works on iOS devices. It supports Face ID, PIN, pattern, and password protection options alongside a handy decoy feature. Then, there are Vaulty Hide Pictures and Videos that can be downloaded to Android devices, Hide It Pro that also allows you to create different photo albums and password secure them. When it comes to the best secretive apps for text messages, the best options are WhatsApp, Signal, Telegram, Viber, Line, and WeChat.

Security of WhatsApp

WhatsApp is the most used instant messaging apps with a bunch of great, easy-to-use features. While we will explore some of these features, here we focus on the security of WhatsApp. We will go through different security and privacy measures of WhatsApp and compare the security of WhatsApp with the security of other widely used instant messaging apps including Signal, Telegram, Line, and Viber.

WhatsApp has been around since 2009. The WhatsApp instant messaging app was developed by WhatsApp LLC. At the time, WhatsApp was only intended to iOS users while today, the app can be downloaded to iOS, Android, Windows, and macOS devices. As previously mentioned, WhatsApp provides its users with a bunch of different functionalities including voice and video calling, text messaging, file sharing, and much more.

The users can also send self-destruct or disappearing messages, share their location, and send a bunch of different stickers. WhatsApp users can create text messages in group chats so the app makes it rather easy to connect with different people sharing similar interests. Now, moving to the security of WhatsApp. The main question is whether WhatsApp protects private, sensitive data the right way.

Security of WhatsApp – Is WhatsApp Secure and Safe?

If you are one of the millions of WhatsApp users, you have probably heard numerous stories regarding the security of WhatsApp. Many of these stories are alarming as they suggest that WhatsApp steals personal information shared by its users. Many of these stories also suggest that WhatsApp shares data with its owner Facebook Inc. Needless to say, these stories about WhatsApp sharing data with Facebook have prompted a major backlash and many WhatsApp users decided to turn to its alternatives.

Even though there is some truth to these stories, the security of WhatsApp is no less fragile than the security of other popular instant messaging options or WhatsApp rivals. The most sensitive and private data you share on WhatsApp including all of your text messages remain one hundred percent private to you and the intended recipients of those messages. More specifically, your WhatsApp messages are always end-to-end encrypted.

End-to-end encryption is the most advanced technology of this kind. When an instant messaging platform uses end-to-end encryption technology, only the communicating parties can access and read private messages. Powerful as it is, end-to-end encryption technology prevents any potential intruders and third parties such as your internet provider, telecom provider, and cybercriminals from being able to get ahold of the cryptographic keys that are required in order to decrypt end-to-end encrypted messages.

This means that the security of WhatsApp is not concerning. With end-to-end encryption technology in place, text messages you send via WhatsApp cannot be read, accessed, or modified by anyone other than you, the sender, and the intended recipient. When messages are end-to-end encrypted, third parties do not have any option or tool required to decrypt such messages. Only the intended recipient or recipients of such messages have the cryptographic keys required to access and retrieve the data that has been encrypted and decrypt it successfully.

WhatsApp and End-to-End Encryption

To protect your and every other user’s private information, WhatsApp employed the best end-to-end encryption technology in its app. In addition to end-to-end encrypting your text messages, WhatsApp also end-to-end encrypts your voice messages, videos, images, status updates, documents and files you share using the app.  As mentioned on the official website in the security of WhatsApp section, end-to-end encryption employed ensures that only the sender and the intended recipient of WhatsApp messages can access, read, or listen to what has been sent.

This means that no third parties or nobody in between including WhatsApp cannot intercept, access, and go through those private messages. With the most advanced end-to-end encryption technology in place, all WhatsApp messages are one hundred percent secured with a key or lock, and only the sender and the intended recipient have the lock required to decrypt, unlock, and go through encrypted messages. The process of encryption occurs automatically, so WhatsApp users do not have to do anything as everything is already done for them.

Security of WhatsApp – Which Encryption Algorithm is Used?

When discussing the security of WhatsApp, we have to take a look at its encryption algorithm. As mentioned on the official WhatsApp website, WhatsApp relies on an open-source E2E Signal Protocol that was crafted by Open Whisper Systems and this is the same company that owns and operates the Signal instant messaging app. Signal E2E encryption protocol uses:

Triple Diffie Hellman also known as Triple Diffie Hellman Handshake provides mutual authentication of all the parties and established a secret key that is shared between all of the communicating parties. Double Ratchet encryption algorithms as suggested rely on two cryptographic Ratchets that derive new cryptographic keys always derived from the cryptographic keys currently used. The Ratchets used are Hashing and Diffie Hellman ratchet. 

When a Diffie Hellman ratchet moves, a cryptographic secret is formed between the sender and the intended recipient. The secret is then used to form a chain and root key. Once the two new keys are formed, Hashing ratchet moves by relying on the chain key to generate a new message key which encrypts a message that is about to be sent. A chain key is used for the following ratchet movement.

AES or Advanced Encryption Standard is a symmetric encryption technology that is today used by the Government of the United States to protect all of the highly classified data. Advanced Encryption Standard is also used by numerous hardware and software across the globe to encrypt private, confidential data. AES relies on three ciphers AES-256 used in WhatsApp, AES-192, and AES-128.AES-256 encryption that enhances the security of WhatsApp uses a 256-bit key used to both encrypt and decrypt messages.

Curve25519 is part of the previously mentioned Diffie Hellman Key Exchange algorithm while HMAC SHA256 is keyed cryptography with has functions. Unlike other has functions, in HMAC SHA256, keyed hash functions need knowledge of the secret key. With such a powerful end-to-end encryption technology including AES-256 encryption combined with Curve25519, HMAC SHA256, Triple Diffie Hellman, and Double Ratchet Algorithm, the security of WhatsApp and the technology behind that is unbreakable, should not be questioned.