The IP68 rating applies to the entire device, it doesn't exclude the charging port. These connectors are well-protected against complete shorts (e.g. people st

The IP68 rating applies to the entire device, it doesn't exclude the charging port. These connectors are well-protected against complete shorts (e.g. people sticking a piece of metal into the port). Both Lightning and USB-C have protocol negotiation at low-voltage/low-current before any meaningful current will be delivered by either side.