[ghostpepper]

This is a common saying but in reality, security through obscurity is widely deployed and often effective.

More pragmatic advice would be to not rely solely on security through obscurity, but rather to practice defence in depth.

[nkmskdmfodf]

Security by insecurity is also 'widely deployed and often effective'.

[bilekas]

Obfuscation is not security.. So there can't be "security through obscurity".

Widely deployed doesn't mean it's a positive action, and effective ? It just can't be as it's not a security. People really need to pay more attention to these things, or else we DO get nonsense rolled out as "effective".