Using Whatsapp on Android powered phone has become a major issue these days. This is because of the open nature of Android that allows applications to access various parts of the phone - this is why users can conveniently share almost everything through any app on Android phone.
When an Android application is installed, whether from the Play store or through an APK file, which is an installer file for Android phones and can be downloaded from various sources, the app requests for permissions to use network and SD card etc.
When you talk to you family or friends, share pictures, videos with them; you better watch out. And this is because using some scripts or an dishonest app, anyone can get into your privacy zone and see what you talk and share. Imagine what a big loss it would be if something extremely useful is shared and is stolen.
The reason using Whatsapp is not safe on Android is because Whatsapp chat logs are saved on the SD Card. While we have permitted many apps to access our SD Card, stealing chat logs of whatsapp becomes relatively easy.
The previous versions of whatsapp were so insecure that didn't even encrypt data on the SD Card. So it was very easy to upload this data on a web server. Even now when whatsapp encrypts data this hack can do wonders..
Current whatsapp database is a SQLite3 database which for a easier use can be converted in excel for a good reason. While now whatsapp is using encryption for database it can't be opened until and unless some python scripts are on the work to get the job done.
Thus every application can read whatsapp's database and it's possible to decrypt it too.
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