How can I see if someone is trying to access my gmail account?

Episode 963 (46:42)

Carneg from North Hollywood, CA

Carneg uses Apple Mail to download Gmail onto his computer, and he recently got an email from Google that someone was trying to access his account. So he tried to changed his password, but it won't let him.

Leo says that Google has a great feature at the bottom of the GMail page that would allow him to check out who's trying to log into his account and the device being used. Leo advises turning on second factor authentication, and to tie his gmail to his cellphone so that in order to change the password, he'd have to get a text or phone call to his phone.