I work at a big multinational company as a software developer (security related services) and was part of the development team for a new product.
Now the product is in the market and a few days ago, after work hours, I got a call from a very calm, nice guy who presented itself as a lawyer (I thought it was a recruiter as usual).
He offered me a deal if I cooperate in his case regarding patent infringement regarding this new product, his client is a startup with basically the same thing.
To be honest I think he is right, I heard the company I work for had some meetings with this startup some time ago, and also a time when there were some doubts on how to do something, and management just said "do it as startup X is doing it".
I think I just could ignore his requests and let it roll and see how it goes, I know he needs me (or the information I can provide) so that could be in my advantage, but if his case is strong enough and I don't help they could come after me too.
Location: South America (I'm sure telling the country won't make the answer vary or better, so letting it out for more anonymity)
Question: what can I do today (apart from getting a lawyer myself) regarding; answering to the startup's lawyer, and actions to take in the workplace (ask to be in another role, save proofs, etc).
Feel free to migrate this to legal.SE if better answers could come up there, although I'm already thinking in getting a lawyer.