Brazilian Ad Fraud Network ‘Camu’ Hits 2B+ Daily Bid Requests

Brazilian Ad Fraud Network 'Camu' Hits 2B+ Daily Bid Requests

August 29, 2024 at 05:04PM

A Brazilian piracy network, “Camu,” once processed over 2.5 billion ad bid requests daily across 132 domains, prompting HUMAN Security’s intervention. By using a simple cookie-based redirection method, the network directed users to “cashout sites” with ads, tricking investigators to decoy sites. This illustrates the challenges in the automated online ad buying ecosystem.

Based on the meeting notes, the key takeaways are as follows:

1. The piracy network known as “Camu” based in Brazil engaged in fraudulent activity by serving over 2 billion online advertisements daily. Despite a decline in activity to 100 million bid requests daily, the network still remains active.

2. The fraudulent scheme operated by Camu involves a simple cookie-based redirection mechanism, leading users to decoy sites and generating significant ad traffic from perfectly honest companies, who may be unaware of their association with illegal content.

3. Camu manipulates the redirection process to obscure the relationships between its malicious domains and piracy sites, thereby evading detection.

4. This type of fraudulent activity is not limited to Camu, as there are seven other operations with a similar magnitude exploiting the programmatic ecosystem of online ad buying.

5. Ad fraud is a persistent issue, with a significant proportion of ad impressions being affected, including instances where ad dollars are directed to inappropriate and unauthorized platforms.

These insights from the meeting notes highlight the impact of ad fraud in the digital advertising landscape, the challenges faced by legitimate advertisers, and the need for more effective measures to combat such fraudulent activities.

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