Signal, one of the more secure messaging services around, has introduced a new feature called “Signal PINs” to safely move your data between devices. You can set the Signal PIN with more than four numbers or alphanumeric characters. When you switch devices, you can use the PIN to recover supporting data such as your profile, settings, and people who you’ve blocked. All this data is backed up on the app’s servers in an encrypted format so no one can access it.  [Read: Twitter tests letting you choose who can reply to your tweets] Right now, Signal requires you to sign up…

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