Hackers have found an extremely easy way to attack your computer through your mailbox. And no I'm not talking about your email. Malicious USB memory sticks are being put in the mailboxes around the area of Victoria, Australia And when residents put the USB in their computer, they're infected with malware. Apparently the sticks have software posing as a fake video streaming service. Police in the area are not issuing warnings. But this is not a new concept. Hacking conferences have long boasted about this Simple exploit of getting people to insert their own malware into their computer. Because people are too trusting when they don't think that a USB stick can be harmful. And the technology is getting more advanced. There are USB sticks that can destroy any computer they're plugged into. Also, earlier this month, security engineer, Rob Fuller, demonstrated how a USB stick can steal the login credentials from a Windows or Mac computer, even when the computer is locked. It only takes about ten seconds. You know the rule your mother taught you when you were young? Don't take candy from strangers. Well now that rule also applies to USB drives. That's it for this tech news update. I'm Bridget Carey. You can stay on top of the biggest stories at cnet.com/update.