Yesterday, the password for Burger King's official Twitter account was stolen, and whoever was behind it began doing some kinda funny things, like pretending Burger King had been bought by McDonald's, or insisting BK employees "sniff percocets" in the bathrooms, or tweeting at journalists who wrote about the hack. Today, all hell has broken loose; Jeep's account is displaying a similar streak of weirdness ("bought by Cadillac"), and just now, @MTV began behaving weirdly.

An Instrument for the Sonification of Everday Things from Dennis P Paul on Vimeo.

Launching Angry Birds from a slingshot on your iPhone screen is fun, but actually launching Angry Birds from a slingshot sounds difficult, and borderline dangerous (well, definitely dangerous to the bird, variably dangerous to you depending on size of bird and degree of anger). A clever hack over on mbed shows you how to have the best of both worlds - real slingshot, digital birds - by turning a slingshot into a USB peripheral for playing Angry Birds.

While we're all sitting around waiting for RFID tech to really take off at the consumer level, people here and there are dabbling in different ways to make use of that kind of technology. For instance, have you ever thought about making your own card scanner to unlock your office, or even bedroom, door?

Developer Brandon Fiquett is one of the first to hack Siri, Apple's new voice command feature that we have previously insisted is for your mum. But maybe not, given what this hack indicates is possible: Siri can be hacked to communicate with just about anything, and in this case has been persuaded to start a car with a simple voice command.

Have you ever been annoyed by people reading or watching what's happening on your computer monitor, usually by quite conspicuously peering over your shoulder? Or perhaps you simply want a way to prevent people using your computer in a very straightforward, quite secure fashion without using software? Well, there's a hack for that.