Though this security flaw has since been fixed, there are still so many reasons to worry about WhatsApp security. One of them is the upcoming merger of Facebook’s three messengers; WhatsApp, Facebook Messenger, and Instagram Direct Messages. Though this is expected to bring end-to-end encryption to the Facebook and Instagram messaging platforms, it’s expected to open new flaws on WhatsApp.
Telegram- Most popular alternative
To register Telegram, you have to use your phone number. However, ou can create a pseudo so you don’t have to share your phone number with strangers. The app is quite secure, and it is “based on 256-bit symmetric AES encryption, 2048-bit RSA encryption, and Diffie–Hellman secure key exchange.” Regular messages are usually encrypted on a client-server model and are stored on the servers by default. Telegram also offers end-to-end encryption for voice calls, and optional end-to-end encrypted “secret” chats between two users. With these secret chats, you can even set up a timer for disappearing messages. This levels of privacy and security are the reason why a lot of “opposition” people and the like are using it. With Telegram, you will be able to send text and media messages with unlimited storage, and so you can still download old content. The app can be installed on Android, iOS, Windows Mobile, Windows, Mac OS, and Linux. There’s also a native web version of the app.
Signal- Excellent security
4.4 on App Store Just like WhatsApp, Signal uses phone numbers as identifiers, and every chat is encrypted end-to-end to ensure hackers can’t snoop. Actually, Whatsapp adopted the technology from Signal. With the app, you can send text and multimedia messages, and you can also make encrypted voice and video calls. The Android version can also optionally function as an SMS app. One great feature of Signal is that you can put a timer on messages, just like Telegram does in secret chats. After the set time interval expires, the message you send with be automatically deleted from the recipient’s inbox. Further, Signal can circumvent censorship in countries like Egypt and the UAE through a technique known as domain fronting. Generally, the app is very private and secure, easy to use, and has no significant downside. It can be installed on Android, iOS, Windows, Mac OS, and Linux.
Threema- No personal info required
Google Play – 4.6 App Stone – 4.7
In addition to text messaging, users can make voice calls send multimedia, locations, voice messages and files. To secure your data, Threema uses Elliptical Curve Cryptography, which is equivalent to 2048-bit RSA encryption. You can also add extra security by adding a PIN lock to the app, and this will ensure security when someone else gets into your phone. A cool feature of Threema is that you can verify the identity of a particular user to ensure that you are chatting with the right person. You can install the app on iOS, Android, and Windows Phone.
Riot.im- bridge other external networks
Google Play -4.5 App Store – 4.3
Riot is built on Matrix, an open standard for decentralized persistent communication. For this reason, it can be used to bridge other external networks like Slack, IRC, Twitter, and Gitter. Users can then collaborate on different apps and third-party tools. Riot is very well organized, and it’s quite secure thanks to the end-to-end encryption used. Its interface is somehow similar to that of WhatsApp so you will adjust pretty quickly. You can install Riot on Android, iOS, Windows, Mac OS, and Linux. It’s also available as a browser app.
Viber- Works similar to Whatsapp
Google Play – 4.3 App Store – 4.0
The messaging app uses phone numbers as identifiers, and it will also sync your contacts to let you know those that have the app installed. You can then use it for instant messaging, voice and video call, and also media and file sharing. All chats to a particular person will be secured with end-to-end encryption that uses 256-bit Curve25519 key pairing. Viber can be installed on Android, iOS, Windows, Mac OS, and Linux. The app is free to use and call locally, but international calls will require you to buy Viber Out credit.
Which messenger should I choose?
All the apps mentioned above are great alternatives for WhatsApp if you are worried about your privacy or security.
Google Play – 4.3 App Store – 4.0
If you are not sure which one to go for, you can opt for Telegram which has a huge user base and allows you to receive your messages on any device.
