even a latest hardware wallet. a hacker can simply set up a phished/emulating GUI display to show "error with device. to reset device please re enter your seed" or whatever their error pages look like to get people to type it in.
Are there any hardware wallets that actually ask you to do something like that in any circumstances? If yes, then that's a very dangerous thing to have. So far I've been using only Ledger and the only way to enter seed phrase was directly using the device and not via Ledger Live app so if any message like that pop up, Ledger users should know that it is a fake. Not that it wouldn't stop some people entering seed anyway.
This shows that we can't be safe if we do not know what we are doing.
This shows that you aren't 100% safe even if you know what you are doing. Since this guy wasn't anonymous, I don't think that this was just some random attack and instead he was targeted which is a different thing than just clicking on some malware link and losing your bitcoin that way. Then again, smart people can do stupid things so maybe this was a brainfart.