Google will start telling web users when they encounter deceptive sites that may try to trick them with misleading ads, the company announced in a blog post today. Now, when Google detects fishy "embedded content," such as an ad that masquerades as a download to steal personal information, Google will warn users with a page declaring a "deceptive site ahead."

The company says the content that will trigger the warning includes anything that tries "to act, or look and feel, like a trusted entity," or that attempts to "trick you into doing something you’d only do for a trusted entity." The plan is part of Google's Safe Browsing program, which was updated in November to flag for similarly suspicious content. Safe Browsing is set on by default for Chrome users.