Hi folks, looking some old news this week: http://news.cnet.com/8301-13578_3-9834495-38.html 1) I was wondering what kind of encryption would be necessary to achieve that. I mean, how did the guy configured his computer to be impenetrable/uncrackable? If he used PGP Desktop like the text says, along with the Whole Disk Encryption feature, how did he managed to configure PGP to not allow by all means someone (even him) to bypass/hack his system and gain access to his files without knowing the password? See what happened on his case: What options do I need to select and where are they? 2) If a thief have stolen my PC, he might access all files by plugging the hard drive into another computer (doing a copy-paste). In that case, what do you recommend when encrypting individual files? Which algorithm/software it's the best? I tried Advanced Encryption Package 2008 Professional 4.6.13 using the algorithm Blowfish 448-bit so far. Is there a way to decrypt certain files manually and then, after I finish using them or turning off Windows, they remain encrypted again with no need for you to do that on each file and insert your password all over again to encrypt them? That will solve the problem if someone plugs your hard-drive on another computer. The Firefox Master-Password works that way. You just need to insert the master-password once for session. After you close the browser, all passwords remain locked. So you can be protected from unauthorized access from both ways. 3) About the Firefox master password, there is a program called FireMaster that can use brute force to decrypt the file key3.db (which contains the master password). http://securityxploded.com/firemaster.php Using a 10-character password for example, like: seucirty01 And trying this line of command: FireMaster -b -c "abcdefghijklmnopqrstuvwxyz0123456789" - l 10 C:\location-of-the-key3.db-file It will take 1.192 years for you to know which master-password was used, on a Pentium 4 3 Ghz/1 GB RAM. So, if I am using a master-password (with a good combination) and no keyloggers are here, no one will ever find out my usernames/passwords stored on Firefox? Remember that if you forget your master password, Mozilla says that there is no way to recover (only delete from Firefox, and by doing that you will also lose all data from the Password Manager). Would the authorities or professional hackers find out my master-password using a different kind of program that will easily decipher the contents of the key3.db file?