Modern Problems How to Spot an Intentionally Damaged File?

Hi everyone,as someone who manages a high-vibe boutique with a lot of international contractors, I’ve started seeing some very strange "file errors" lately.A few times this month, I’ve received attachments that look perfect but simply refuse to open. I’m starting to wonder if people are using a Files Corrupter to hide the fact that they haven’t actually finished the work yet.Does anyone know a high-quality way to tell the difference between a natural technical glitch and a curated, intentional corruption?I want to keep my business professional and established without being unfairly suspicious of my hardworking team.Thanks in advance.