One signal

A 00f.net article warns that attempts to erase secrets from memory can backfire when compilers change how the code behaves.

Why it matters

It says a simple memset may be optimised away, while other wiping approaches can leave secret copies in stack memory. The practical advice is to inspect compiled output rather than assume a cleanup call did its job. For developers handling passwords or other secrets, “wipe it” is not a guarantee. Have you found a reliable way to check that sensitive data is actually cleared?

Discuss: Have you found a reliable way to check that sensitive data is actually cleared, or should developers rely on established wiping libraries instead?

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