AI Sec Watch: A Security Intelligence Platform for AI Systems

Luu, T.J.

Google expands Gemini AI use to fight malicious ads on its platform

infonews

securityindustry

Source: BleepingComputerApril 16, 2026

Summary

Google is using its Gemini AI model to detect and block malicious ads on its platforms, removing 8.3 billion ads in 2025 as scammers use cloaking techniques (hiding the true destination of a link) and AI-generated content to create deceptive advertising at scale. Gemini analyzes billions of signals like advertiser behavior and campaign patterns to identify harmful ads in real time, including those impersonating legitimate brands to distribute malware, steal cryptocurrency, or redirect users to phishing sites (websites designed to trick users into revealing passwords or personal information). Google reports this approach has reduced incorrect advertiser suspensions by 80% and plans to expand Gemini's use across more ad formats.

Solution / Mitigation

Google says it is relying on Gemini AI-powered systems to automate the discovery and blocking of malicious ads before they are shown to users. The company reports that by the end of last year, the majority of Responsive Search Ads created in Google Ads were reviewed instantly and harmful content was blocked at submission, with plans to bring this capability to more ad formats in the current year. Google will continue expanding Gemini's use across additional ad formats and enforcement systems, aiming to block malicious campaigns at submission time.