Apple has issued a voluntary recall of several AC wall plug adapters that were included with several Macs, along with several Apple World Travel Adapter Kits, included with few iOS devices shipped and sold between 2003 to 2015. A large number of markets are impacted, including Argentina, Australia, Brazil, Continental Europe, New Zealand and South Korea. Luckily for most US based geeks the current recall doesn't include any parts of North America.
At issue is the possibility that the actual adapters themselves could break open at the casing and causing a 'slight' risk of electrical shock if touched. One could also assume the exposed rronges could also potentially create other risks as well, such as fire, however at this time Apple has only stated there is a risk of shock and that they can confirm at least 12 incidents worldwide.
Apple has stated in their official press release
that in “very rare cases,” the two-prong wall plug adapters may break
and create a risk of electrical shock if touched. Apple's support forum has already seen a few examples of what 'may' occur if the adapters break. One such example is the picture found in this thread from Apple’s support forum.
Apple is asking customers to stop using affected plug adapters. Customers should visit www.apple.com/support/ac-wallplug-adapter for details about how to exchange the affected adapters for new, redesigned ones.
affected two-prong plug adapter has either four or five characters or
no characters on the inside slot where it attaches to the main Apple
power adapter. Visit the program website for more details on how to identify an affected adapter.
Apple noted the recall doesn’t affect Apple AC wall plug adapters
made for Canada, China, Hong Kong, Japan, United Kingdom, United States,
or any Apple USB power adapters.