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WhatsApp is one the most used messaging system on smartphones out there and has recently been placed in the middle of a privacy debate after implementing end-to-end encryption – which makes it impossible for governments and other third parties to access any conversation via this particular app.

The app was bought by Facebook in 2014 for 22 billion dollars and it was a pretty huge sum for an app that was used widely on an international level, but was significantly less known in the US.

Recently, the co-founder of WhatsApp, Jan Koum stated that his goal for the messaging app is to have all of the smartphone users in the world end up using it.

However, there are many hurdles to overcome until that will actually be possible. Koum says that one of the bigger problems in this sense in the US is the fact that there a lot of similar products of the market. Since Facebook bought WhatsApp, the latter got a whole lot more US users and now people send 1.6 billion photos, 250 million videos and 42 billion messages via WhatsApp every day.

Voice Calling

WhatsApp received the voice calling feature over a year ago and it instantly became a competitor against Microsoft’s Skype messaging service. The feature was implemented as a result of users calling in and saying that they would like to be able to voice call people. Koum said that he begun working on this feature with his business partner Acton and missed the deadline for release by a year. In the end, it was released in 2015.

Security in end-to-end encryption

WhatsApp developers and co-founders, Koum and Acton, also decided to implement the end-to-end encryption because their users asked for more privacy and security in the app. This is why the app has come to the attention of the FBI, because the end-to-end encryption keeps any third party from listening on any conversation made via WhatsApp.

WhatsApp blocked in Brasil

Due to the same security issues, the app was recently blocked in Brazil for 72 hours and it was a disaster as close to 100 million Brazilians are using it.

There were some rumors saying that the app would be blocked in China as well, but it turns out, there’s a small chance of that happening, because the app is not doing so well there and has to compete with another messaging service called WeChat.

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