Apple seems to be facing an iPhone 8 battery problem, which is not yet known how serious it is, but brings memories of the recent Galaxy Note Note 7 fiasco.
There have been reports about iPhone 8s that have split apart either on arrival or after several days of use. What appears to be happening is that the battery inside the phone is swelling, bending the front of the phone and separating it from the body of the device.
Apple is aware of the issue and it is "looking into it."
The first report came out of Thailand, where a woman is said to have found her iPhone swollen apart after plugging it in to charge. There have been also similar cases in Japan, China, Canada, and Greece.
Swelling batteries is an unusual case, especially when we talk about brand new batteries. It is true that manufacturers have reached a limit with lithium-ion battery capacity and could end up producing designs with a bigger risk of short circuiting. Provided that it is not a fundamental design issue for the specific batteries, Apple may have to look into the quality checking procedures in the manufacturing process of the batteries.
Obviously, battery issues could lead to a potential damage to Apple, and brings a small "panic" among Apple's executives.
For now, it's too early to know what's happening with Apple's phones. It could be just a random distribution, a random event.