Why is it important to turn it on?
Using 2FA to access your favourite programs provides enhanced security to traditional usernames and passwords. The multiple layers of authentication increase confidence that the user requesting access is actually who they claim to be i.e. you.
Where do I turn it on?
Where to turn on 2FA within a program depends on each program. However, the steps are universally simple and somewhat similar. Icons and language may differ slightly depending on the program or device you are using.
Turning on 2FA for Signal
By setting up 2FA for Signal, you'll be asked to enter a special login code or to confirm your login attempts each time you try to access Signal from a computer or mobile device Signal doesn’t recognise. Signal will also send you alerts whenever someone tries to log in to your account.