Sniffing POP3 passwordsPosted: April 28, 2014
If you have forgotten what are the passwords for user accounts at your mail server, run the specialized dsniff utility while they are checking their mail:
dsniff -i any 'tcp port pop3'
It is better than other sniffers because it does not show you all the usual garbage, it cares only about user names and passwords.
Of course it will not work if the user uses STARTTLS or SSL/TLS connection security. After all, that’s what it is for…