[some_random]

If you have physical access you can just factory reset the device and onboard it with the normal flow though

[yannyu]

That's fair, though at least resetting would indicate that an attack happened. Default passwords and printed passwords can result in undetected attacks, which are arguably worse.

[some_random]

It doesn't change anything in this case though, you can't use the default password against a tp-link device after it's been onboarded.