Chrome Store Hosts 'Poper Blocker' Spyware Downloaded by Millions

A popular Chrome extension known as 'Poper Blocker,' which has been downloaded by millions of users, has been identified as spyware. Despite being marketed as a legitimate ad-blocking tool, researchers discovered that the extension actively exfiltrates sensitive user data. The discovery highlights a significant failure in the vetting process for the Chrome Web Store, as the malicious software managed to maintain Google's 'stamp of approval' even after security experts raised concerns. The extension reportedly collects extensive browsing information, posing a severe privacy risk to its large user base. Security researchers are urging users to immediately uninstall the extension and review their browser permissions. This incident serves as a stark reminder of the risks associated with third-party browser extensions, even those hosted on official platforms, and underscores the ongoing challenge of maintaining security within massive app ecosystems.