“The e-mail saying that your Gmail account may have been compromised conveniently contains a link or button for you to click on to remedy the problem. Slow down and think. According to an Ars Technica story, this is exactly how the breaches of the Democratic National Committee and the personal e-mail breaches of former Secretary of State Colin Powell and Clinton Campaign Chairman John Podesta took place.”
Don’t just click the link, go login to your Gmail account and check for recent connections from there:
Remember this for all emails that you get warning you about information, or asking you to change your password. Go to the website and login, don’t just click on a link that you cannot verify.