Heavily-accented Caller (foreign call centre?) said he was from Google looking to speak to IT about our network. Nobody from Google would be ringing to do that. Called again twice, getting other team members in our dept and ended up hanging up because we were onto him.

Same as above. Had a call put through to me, said he was from Google and wanted to speak to the IT manager. Suspiscious off the bat. Dropped our business owner's full name and threw in a few keywords about AI and the Cloud, hoping I'd bite. Didn't give him any new info.