SearchJack Adware Campaign Exposes 758,000 Users to Privacy and Phishing Risks

SearchJack is a coordinated adware campaign of 23 Chrome extensions that silently set themselves as users' default search engine and route queries through operator-controlled affiliate middleware (primarily Yahoo-hosted redirects), impacting roughly 758,000 users; the report details technical TTPs (chrome_settings_overrides, declarativeNetRequest dynamic rules), eight identified monetization brokers, publisher obfuscation, and mitigation recommendations for platform and security operators.