I can be broken, yet I hold the keys to knowledge. I often go unrecognized despite my power. What am I?

Category: Brain · Difficulty: expert

Hint: Consider systems of information and security.

Answer

A cipher

Explanation

Codes can be broken for understanding or accessing information but are often overlooked in their importance.

This is a expert brain riddle — one of the harder riddles here. The answer is A cipher.

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