Confederation of Indian Industry (1998). Desirable Corporate Governance A Code.

UNCTAD, Emergency safeguard measures in the GATS Beyond feasible and desirable, forthcoming

In general, security by obscurity is one of the weakest forms of security. But in some cases, every little bit of extra security is desirable.

The IV is only meant to give an alternative seed to the encryption routines. This IV does not need to be secret at all, though it can be desirable. You even can send it along with your ciphertext without loosing security.