- Google says Gemini blocked 99% of malicious ads by 2025
- AI tools removed 8.3 billion ads and suspended 24.9 million accounts, including millions linked to scams.
- Gemini Analyzes Billions of Signals to Preventively Stop Misleading Ads Made by GenAI
Google has revealed that its Gemini AI platform has helped the company filter out almost all malicious ads sent to the Google Ads network by 2025.
In a new blog post, Google said its Gemini-powered tools “dramatically improved” its ability to detect and stop bad ads, detecting more than 99% of policy-violating ads before they were served.
“We continue to evolve our defenses to stay ahead of even the most advanced schemes,” Google said.
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Billions of signals
As arguably the largest advertising network on the planet, Google Ads is under a constant barrage of attacks: criminals steal other people’s accounts or create new ones and then use Generative Artificial Intelligence (GenAI) to create convincing ads that simply spoof other well-known companies.
These advertisements are then displayed on the web and different techniques are used to trick users into believing that they are visiting legitimate websites.
Now, Google says it’s fighting fire with fire.
“This proactive approach helped us defend against bad actors. In 2025, we blocked or removed more than 8.3 billion ads and suspended 24.9 million accounts, including 602 million ads and 4 million accounts associated with scams,” the company said.
Google Gemini now analyzes “billions of signals,” including account age, behavioral signals, and campaign patterns, to identify potential threats.
The company says these models better understand intent, help detect malicious content and preemptively block it, “even when it is designed to evade detection.”
“Bad actors are using generative AI to create misleading ads at scale, and Gemini helps us detect and block them in real time. Late last year, the majority of responsive search ads created in Google Ads were instantly reviewed and harmful content was blocked upon submission, a capability we plan to roll out to more ad formats this year.”
Google also highlighted that its advertiser verification program provides an additional layer of prevention.
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