Still are, though most often it's heat rather than photons from sunlight since it's not really necessary to disassemble hardware to that extent these days. And there's available processing power to retry or do other error handing for any interference. Like running an unshielded Ethernet cable through a wall next to a power cable or through a room with heavy machinery can definitely cause data corruption from EM interference, but it will likely manifest as slowness rather than crashing a whole system. But there are lots of things that still cause computers or applications to crash that are related to stray energy, we just are so used to buggy software now that it rarely is noticed. 😁