It might be enforceable, depending. How broad is it? Sometimes it's like "not competing with any vendors' business" and then if your company uses GMail you can

It might be enforceable, depending. How broad is it? Sometimes it's like "not competing with any vendors' business" and then if your company uses GMail you can't do anything Google does. Sometimes it's not a big deal. I have been able to negotiate better non-competes in the past by pushing back, admittedly with smaller companies. Often response will be "but our lawyer says it's fine": good guy/bad guy kinda scenario. In which case I hired my own lawyer.