Security Through Obscurity Is Not Real Security
Hiding how a system works is not a substitute for actual protection. While masking details can deter casual snooping, true security relies on robust design rather than just keeping secrets.
This practice works like a magician hiding a card up a sleeve. While it can stall an amateur intruder, it does nothing to stop a determined professional who understands the system flaws. Real engineers warn against relying on this because secrets are almost always eventually discovered. It is best used as a minor extra layer rather than the foundation of your defense.
Source: Security through obscurity