Why is inventing new mitigations risky?

Because security is a deep specialism — a home-rolled fix can look like it works while silently failing, giving false confidence.

Inventing new mitigations is risky because it requires deep domain expertise:

1. Mitigations are an area of expertise - networking, databases, cryptography require deep knowledge
2. Amateurs make mistakes, but so do pros - even experts get it wrong
3. Mitigation failures may appear to work... until they don't - false sense of security
4. Get expert support when you need to invent new mitigations

Rule of thumb: If you're not a security expert in that specific domain, don't roll your own solution. Use established libraries and patterns.