Brian Todd reports on the infamous hacker known as "Guccifer," who has now apparently targeted Hillary Clinton.
CNN's Lisa Sylvester reports on Israel being hit by a cyberattack. Hacking group "Anonymous" has claimed responsibility.
A notorious group of hackers may be trying to target the Iowa caucuses to tamper with voting. CNN's Brian Todd reports.
Hackers from the group LulzSec claim they have access to News Corp. e-mails, publishing passwords as proof.
Police are talking to a teen they say could be linked to several recent computer hacking attacks. Brian Todd reports.