Comment by pgalvin
8 days ago
> However, they just change their original message, maybe to remove a typo, change the date or add a friendly note. Then the three letter agency does a glorified 'diff' and they are subsequently in on the chat.
Could you expand on this please?
They cannot because PGP has no such vulnerability.
You must be joking!
It is hard to imagine that "modern" encryption would be susceptible to known plaintext attacks, please provide some citations.