Following in the footsteps of Microsoft, today Apple has issued its very own voluntary recall of AC wall adapters. However, in this case there seem to be a lot more units involved, because we're talking about chargers having been packed with certain Macs, iOS devices, and also as part of the company's World Travel Adapter Kit.
Apple says device chargers that it's shipped with its products from 2003 to 2015 "may break and create a risk of electrical shock if touched", but only "in very rare cases". There's some good news here, in that not all types of chargers are affected. The issue can manifest itself in those units designed for use in Continental Europe, Australia, New Zealand, Korea, Argentina, and Brazil. Not affected are the chargers shipped with Apple products sold in the US, UK, China, and Japan.
The image above neatly sums up which exact models can suffer from this. And if you have such a charger, with two prong wall plug (one of the variations depicted above), then you can easily spot if yours needs replacing or not by whether it has 4 or 5 characters or no characters on the inside slot where it attaches to an Apple power adapter. The redesigned (and safe) models all have a three-letter regional code in there (EUR, KOR, AUS, ARG, or BRA depending on location).
If you have one of the bad chargers, Apple will replace it with a good one for free. The procedure you need to follow for this to happen is outlined at the Source link below. You will need the serial number of your Mac, iPad, iPhone, or iPod in order to participate. When you have that ready, you can choose to perform the exchange at your local Apple store or online.