Hi, I have been working at my tech company for last 3 years as Senior engineer (6 years experience in total). Four months back we hired a new tech lead for our team, who happens to be my manager as well. I didn't interviewed her.
At first things looked normal and she seemed to be a great person/engineer. However, last week I was doing a code review of a PR raised by her and noticed a code which looked very familiar, something I have seen in an open source project (that I closely follow). On a deeper look I found that multiple files have been copied from the open source project (with an MIT license) and have been added in our proprietary code.
I'm not sure how to handle this situation, it seems illegal (definitely not ethical).
Can someone please let me know what to do here?
Edit: The MIT license is not mentioned in our proprietary code
I remember reviewing someone's PR and realizing I recognized some of the code from a previous company (that was open source, but there was no attribution). I just pointed it out in my review and we decided to remove that code, no big deal.