Have a private document on your desktop OS? Here's how to keep it secure on Linux, MacOS, and Windows.

Files stored at the AOL data centers will be encrypted and access to them will be controlled via a password and an answer to a security question set up by the user, according to the AOL information.

The software, which is aimed at enterprises, will encrypt instant messages as they move between computers, said Marty Gordon, a spokesman with AOL. The companies will offer the software in ...