You should beware of this attack that takes your cookies

A new web browser exploit allows hackers to access Google accounts by reviving expired cookies containing login information. Kurt “CyberGuy" Knutsson reveals the details of the attack on Google accounts. The exploit is based on expired cookies that contain login information from Google.

A McAfee antivirus pop-up that appears on your computer screen is a scam using fear and panic to make you act quickly and surrender personal information. The pop-ups are meant to scare you into giving in on personal information to protect your identity. McAfee's antivirus pops-up is designed to scare people into taking action quickly.