This is also true. I love when people say, "THERE GOES THE HDD", and dont realize every S-ATA hdd is sealed off from liquid
There is a hole in every HDD with an air filter inside it. Liquid can still get through that air filter as it's made of spongy material. BTW, in case anyone is wonder what the hole is for, it's to regulate the pressure inside the HDD. As temperature rises, so does pressure. Without the hole, the pressure would cause the internal parts to collapse.