Click here to learn how this feature can be used against you. The function is called “Confidential Mode,' and the Department of Homeland says it could present a significant security threat to users. Google recently added a new feature to its Gmail redesign. That’s not all the bad news for Gmail users. Click here to stop it and disconnect third-party apps from your Gmail account. If you are worried about this practice, I’ve got your back. Recently, the Wall Street Journal reported some third-party developers were collecting data on Gmail users. That’s about 1 in 7 people on Earth actively using this free email platform in 74 different languages. Watch Video: Useful Gmail settings you'll wish you knew sooner