The functions of this platform are very simple, some of them are almost a truism, but it does not mean that they are not very effective. In fact, the simplicity of the app is surprising for the powerful security measures it has, so it will be worth analyzing it in depth.
How to protect chats with Threema
We send many messages a day through the smartphone, and messaging applications such as WhatsApp or Telegram use end-to-end encryption, although that sometimes is not enough. And in that trail of conversations, there is always the risk of blackmail or scams, but luckily, there is a quite effective solution with Threema.
The operation is very simple, since it works as an independent messaging app, but with highly secure functions. Obviously, it uses end-to-end encryption on messages, files and multimedia, but also adds other options. Establish a range of levels, in which to reach the 3 security points, the user must scan a QR code assigned to him to confirm that he is not a robot and verify identity.
You do not need to have a mobile number
Threema contains a very robust package of measures to ensure user privacy. In this way, it uses the NaCi cryptography protocol to encrypt the file library, and no need to register with a phone number, since the app assigns each user an ID address or an 8-digit password to enter the app and generate a profile, but neither the number nor any personal data appears. Perfect for interactions with strangers such as Wallapop or dating apps.
Although there are no numbers involved, you can make backup copies of these contacts so as not to lose them, apart from a backup of the conversations. The downside? That only has a paid version, although it is usually an app that enjoys many discounts, such as on Black Friday or periodically, since it is a service that is highly demanded by the Android community.