KB5027231Broken
Chrome broken for all Malwarebytes users
What broke
June’s update changed Windows exploit protection in a way that made Malwarebytes’ anti-exploit module think Chrome was malicious. Chrome processes would run in the background, but the browser window never appeared. Given that Malwarebytes has millions of users and Chrome has about 65% browser market share, this was a significant number of people who suddenly couldn’t browse the web. Trying to uninstall the update via WSUS produced a “catastrophic error.” The world’s most popular browser, broken by the world’s most popular antivirus, caused by the world’s most popular operating system’s update.