In August 2025 , F5 disclosed a major security breach — publicly revealed on October 15, 2025 — in which a nation-state actor accessed internal systems and stole BIG-IP source code and vulnerability information .
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Contact usIn August 2025 , F5 disclosed a major security breach — publicly revealed on October 15, 2025 — in which a nation-state actor accessed internal systems and stole BIG-IP source code and vulnerability information .