When I moved into my apartment building (only 4 units) the first day linkedIn started asking me if I knew my neighbor (who happens to work at LinkedIn) even tho

When I moved into my apartment building (only 4 units) the first day linkedIn started asking me if I knew my neighbor (who happens to work at LinkedIn) even though we had not had any contact. Best guess was the linkedIn app knew we were in close proximity (wifi networks around?) and thought we must know each other. Yeah, creepy.