[yodsanklai]

> So, there are very high incentives for companies to vet their devs, have proper code reviews, etc.

I'm not sure about that. It takes a few leetcode interviews to get in major tech companies. As for the review process, it's not always thorough (if it looks legit and the tests pass...). However, employees are identifiable and would take huge risk to be caught doing anything fishy.