"Everyone" does not know that. Avoiding plain text passwords is the commonest method used on the Internet, but if you get in to mobile telecoms, you find share

"Everyone" does not know that. Avoiding plain text passwords is the commonest method used on the Internet, but if you get in to mobile telecoms, you find shared secrets stored in hardware-secure write-only enclaves in clear text. This is actually done because in that specific environment it increases security. It's not a general solution of course, but "only store encrypted passwords" and "only store password hashes" don't always apply either.