Malicious Chrome Extension 'Poper Blocker' Functions as Spyware, Downloaded by Millions

A browser extension called 'Poper Blocker' advertised as an ad-blocker has been hosted on the Chrome Store and downloaded by millions of users. The extension functions as spyware that exfiltrates large amounts of sensitive information from users. Despite warnings from researchers, the malicious extension remained available on the Chrome Store with Google's implicit approval. The extension benefits from appearing legitimate due to its presence on the official Chrome Store platform.