This is best understood through the words of SignalвЂ™s founder Moxie Marlinspike who stated in a blog post that: Yet, if those photos are blurred using Signal, the implied message of activism can be sent across but at the same time, there would be no tracking.

You see, when spectators or even protestors themselves share photos of their fellow protestors, this can help law enforcement agencies to identify them and later track them down for investigation. The answer lies at the heart of the recent protests in the US commemorating George Floyd. The key question nonetheless is, how is this useful considering that signal messages could not be intercepted before either and so there may be no strong need to blur them? See: These Anti-Surveillance Tools Will Protect Activists and Their Privacy The second option is to use a вЂњblur brushвЂќ through which you can manually blur faces by drawing over them.ДЄs for the image processing, it will be done completely inside the app so that no data is transferred to any outside server removing any possibility whatsoever of a data leak. This will happen in two ways primarily:ДЇirstly, the app is utilizing вЂњplatform-level librariesвЂќ to automatically detect faces in a picture but this isnвЂ™t guaranteed to work every time. Just recently, though, Signal Messenger has added another very important feature that allows users to blur images before sending them via messages on both iOS and Android. See: Meet IRpair & Phantom powerful anti-facial recognition glasses It offers a range of security features including end-to-end encryption (hello WhatsApp), disappearing messages (hello Snapchat), no tracking, and hiding metadata along with being open source. One such app happens to be Signal Messenger which is used primarily by journalists, activists, and those in other high-risk jobs. This has naturally led them to move towards several privacy-centric apps that would not compromise on their security regardless of what a government of the day may demand. With the news of NSA tapping various online services and telecom networks years ago, users have since become much more concerned about what they share online. Signal messenger has introduced a new tool that lets users blur their faces.

How to blur a face on a picture android