Getting Someone to Send an Instant Message That Contain a Public Key

The ability to reorder and suppress messages because they have metadata that would let them resolve the ordering of messages, but they didn't authenticate it. So an attacker can strip it up, which is also a hard problem for implementers of intended insecure messengers. "It's fast in the furious shit right there," says Thomas Mertesniak from security firm Drown. 'It's a fun, easy motorcycle over shark, but not on fire yet'