In my so humble opinion, hackers are assholes. They can break into our homes by means of our computers and find out anything they want in several different ways, which include:
A virus, which can infect a computer and damage files and system software. BeautifulPeople.com was attacked by a virus that allowed “less than beautiful” people to join the dating site.
A worm, which is a program that copies itself and ends up shutting down a computer or network. One of the most famous worms is the “Morris worm” which was the first worm to be released. The creator Robert Morris was charged for his actions.
A Trojan horse is a program that hides in a computer and looks like it is real. Something generally triggers it and the Trojan horse starts to take over a computer. Many major companies are attacked annually by Trojan horses. Many people believe you should not do “mobile banking” because of Trojan horse attacks.
Rootkit is a program that will hide in a computer and allow a stranger, from a remote location to execute programs, change settings and even access files. HBgary was recently hacked by a rootkit.