Perplexity Impersonation Attack Exploited Chrome Web Store Trust to Intercept Search Queries
A malicious Chrome extension masquerading as the Perplexity AI search engine intercepted all user searches and address bar input, routing them through an attacker-controlled server before delivering results. Google removed the extension after Microsoft's responsible disclosure, but the attack demonstrates how supply chain compromises in browser extension marketplaces can enable large-scale data harvesting.