Computer security technologists are racing to find ways to block ever-more complex computer worms and viruses that burrow into computers -- usually via e-mail -- and wreak havoc on network systems.

If a ransom note suddenly appears on your PC screen, your PC has been hacked. But computer attacks are not always so drastic and clear-cut. For the less obvious cases, you’ll need a finer sense and ...

Dianna Gunn built her first WordPress website in 2008. Since then, she's poured thousands of hours into understanding how websites and online businesses work. She's shared what she's learned on blogs ...