A So safe websites have been facing hacker attacks, leaded by Hector Xavier Monsegur, an ex FBI member.
B There’s an internet group, which defends freedom of speech, but actually have been carrying through cyber attacks.
C High-profile hacker groups have been supported by minor ones, such as LulzSec, in order to get together and perform huge cyber attacks.
D There’s an internet group, which is focused on causing the chaos in huge websites, by manipulating flaws in their security and passwords systems.