How do you deliver something quickly without skipping important safeguards?

I narrow the scope rather than just removing checks. The first version can handle one type of document, work read-only, or require human confirmation. Then I can test the value faster and the consequences of errors are smaller.

I don't treat a data leak as an acceptable shortcut “because it's only an MVP”. If I postpone an improvement, I describe the gap, its consequence and when we'll come back to it. Better a small path that works from input to result than a broad demo with no verification. The remaining risk should be known to the person responsible for the product, not hidden in a code comment.