Hackers can wipe your Android with a single link
Have you got an Android phone? Well, when you're not constantly sneering at iPhone users (you must be so proud), you're running the risk of falling into a "dirty USSD" exploit which enables hackers to wipe your entire phone.
And all because you clicked the wrong link.
Phones that could be vulnerable to a USSD attack are: Most HTC phones, Motorola Atrix 4G/Milestone/Razr, Samsung's Galaxy S2 and S3, Ace, Beam and S Advance.
Only selected Samsung phones have been confirmed as being wipeable via a USSD command, but loads of other phones use USSD commands, so it is worth being vigilant.
Samsung owners will be glad to know that the company have already released a firmware update that patches the vulnerability (so do an update already). Likewise, if you're running Android 4.1 Jelly Bean, then update your phone. As USSD uses a flaw in the dialer, you may want to change that (one good alternative is the free DialerOne).
There's a more detailed list of how to protect your Android phone, and what USSD is, at Digital Trends.