<Dl> <Dd> Alice ← (Mallory's key) Mallory Bob </Dd> </Dl> <Dd> Alice ← (Mallory's key) Mallory Bob </Dd> <Li> Alice encrypts a message with what she believes to be Bob's key, thinking that only Bob can read it: <Dl> <Dd> Alice "Meet me at the bus stop!" (encrypted with Mallory's key) → Mallory Bob </Dd> </Dl> </Li> <Dl> <Dd> Alice "Meet me at the bus stop!" (encrypted with Mallory's key) → Mallory Bob </Dd> </Dl>

Sophisticated form of man in the middle attack