@kkarhan Sorry but no, the correct solution is to push for easy to use solutions that are at the same time private and secure. Hiding privacy and security behind a veil of "you need to know" is discrimination of people that are not able (either mentally, physically or monetary) to gain that knowledge.
The correct move here is for @signalapp and any other service to fix this and for legislators to enact laws enforcing proper security and privacy by design.