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The last ten years presented us with an alarming increase in instant messaging apps. As their popularity grew, the hackers have also increased their numbers.  We are going to present some things that you might need to know before pressing the next “Send”.

The three apps encrypt messages to ensure privacy for both parties, featuring end-to-end security. The encryption systems of Telegram and WhatsApp have gained much acclaim, whilst Viber is fairly new in the business, making use of the feature in April 2016. Viber’s security measurement takes place only in group conversations and one-to-ones providing that both the senders and the receivers have the application up to date.

Speaking of upgrades, WhatsApp has just been upgraded. It’s even more secure now introducing an authentication system called two-factor and what it does is that it adds another firewall layer of protection during the log in process.

People who use WhatsApp are requested to type in a passcode every time their respective devices are registered to their accounts. If you fear that the code will be forgotten, you can use an e-mail address to renew it.

Being different from Viber and WhatsApp, people using Telegram can send all kind of files, even having the option to make their chat self destruct in a few second’s time to a week. It can also provide Secret Chats that once they have been accepted; messages are starting to be encrypted.

Unlike normal messages, secret ones are not stored in a cloud-type system and they can only be seen from the device that started the chat and the device that is receiving the messages.

Being present ever since December 2014, encryption keys provided by Telegram frequently change after being used more than a week or if they are used more than 100 times. The keys are then later discarded and then destroyed.