Google plans to stop using cookies to track you across the web, marketing it as a way to protect your privacy on the web. But—surprise—it won’t make much difference, and could actually make it easier for advertisers to identify you.

Third-party cookies are how Amazon places ads for items you viewed on non-Amazon sites. The ads can load Amazon’s cookie even when you’re not on the retail giant’s website, identifying you as yourself. This trick can also be used to track you across the web and gather information about your browsing habits. Google will stop doing this, but that doesn’t mean you can’t be tracked. It just means the process will work differently and — at first — will be harder to block.

"Because of the smaller pool of users compared to the entire Internet, identifying one specific user within a pool of, say, a thousand users will be even easier," software engineer Peter Thaleikis told Lifewire via email. "Fewer unique identifiers are needed to accomplish the same thing if the set of options is substantially smaller."

You can now block third party cookies by opening the preferences in your web browser and turning them off. This will only allow sites that you visit to store cookies on your computer, meaning that the site can remember you and you won’t have to log in every time you visit.