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Breeze Comet Executes Hundreds of Fraudulent Transactions via Brazilian Payment Systems

The Hacker News
· September 1, 2026

AI summary

A threat actor known as Breeze Comet has been targeting Brazilian financial services, retail, and e-commerce organizations since 2024. This financially motivated actor specializes in manipulating payment systems and banking software in Brazil to carry out fraudulent transactions. Breeze Comet has executed hundreds of fraudulent transactions via Brazilian payment systems. The threat actor's activities were described by the Google Threat Intelligence Group and Mandiant teams. Breeze Comet was previously referred to as UNC5669. The group's focus is on exploiting Brazilian payment systems and banking software for financial gain.

Countries in focus

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This is an AI-generated brief aggregated by HackerFeeds for convenience and grounded in the source’s own summary; the related CVE, threat-group and country data is from HackerFeeds’ own indexes. The original article is the authoritative source — all rights belong to The Hacker News.