A newly uncovered malware campaign, dubbed GhostPoster, is exploiting fake browser extensions to infiltrate user systems and compromise sensitive data. Cybersecurity researchers warn that the campaign leverages convincing replicas of legitimate add-ons to bypass user suspicion and traditional security checks. Once installed, the malicious extensions quietly harvest information, manipulate browser activity and create backdoors for further exploitation. The development highlights growing risks in the browser extension ecosystem, where convenience often comes at the cost of vigilance.