Mac OS X Lion Login Passwords Extracted With Ease | SecurityWeek.Com:

Passware Kit Forensic v11, can extract Mac OS X Lion user login passwords from system memory in a matter of minutes.

If you’re worried and want to opt out of this fun little vulnerability:

Passware says the security risk is easy to overcome by simply turning off the computer instead of putting it to sleep, and disabling the “Automatic Login” setting. This way, passwords will not be present in memory and cannot be recovered.