We use our computers to gain access (username and password) to a great variety of online services such as Facebook, Gmail, Twitter, online services etc. It is sufficient to open Firefox or Internet Explorer, go to any website and login to that particular service by using your username and password. If you want to recover your passwords or…want to sniff, recover and, why not, steal other users passwords and usernames I have found an interesting free software that in a couple of steps will let you discover all passwords used on a specific computer. Best of all, it will let you scan all applications and programs installed on a computer and from each of them, it will show usernames and passwords!