That's just security by obscurity, which is rated pretty appropriately.
Obscurity is a perfectly adequate layer of security. It shouldn't be the only layer but those who argue against adding it heard at some point "security through obscurity is not security" and never dug deeper.
Obscurity is a perfectly adequate layer of security. It shouldn't be the only layer but those who argue against adding it heard at some point "security through obscurity is not security" and never dug deeper.