Although not technically Apple's fault, the death of a Chinese flight attendant (who had purportedly been electrocuted by a third-party iPhone charger) has prompted Cupertino to create a site meant to help consumers recognise 100 per cent genuine, actual Apple-approved chargers.
The page only exists on their Chinese-language site, but thanks to a little help from Google Translate, us English speakers can also benefit from its infinite wisdom:
Apple always put the user's safety first, so all of our products are subject to stringent safety and reliability testing, and designed to meet government safety standards around the world, including for the iPhone and iPad USB power adaptor.
This overview will help you identify genuine Apple USB power adaptor. When you need to charge the iPhone or iPad, we recommend that you use the random standard USB power adaptor and USB cable. These adapters and cables are also available separately from Apple and Apple authorised Resellers.
Of course, most of the third-party chargers you buy will probably come from perfectly respectable manufacturers and give you no problems whatsoever. But just in case you're worried that you might be stuffing your socket with a counterfeit, this should put your mind at ease. [9to5 Mac]