Upcoming Contact Key Verification Feature Promises Secure Identity Verification for iMessage
When you deploy Contact Key Verification with someone you already know, you upgrade an existing conversation from “I think I know this person” to “I know this person, and we now have an out-of-band encryption verification step to keep our conversations secure and tamper resistant.”
All you have to do is pull up an existing conversation and then use some trusted method to read the provided code, as you can see below. If the code matches, you each tap Mark As Verified.
Small-but-important changes in the world of digital journalism, and not a moment too soon.