Internet security nonprofit Shadowserver Foundation has found more than 266,000 F5 BIG-IP instances exposed online after the security breach disclosed by cybersecurity company F5 this week. The company revealed on Wednesday that nation-state hackers breached its network and stole source code and information on undisclosed BIG-IP security flaws, but found no evidence that the attackers had leaked or exploited the …
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Oct 15, 2025Ravie LakshmananVulnerability / Threat Intelligence U.S. cybersecurity company F5 on Wednesday disclosed that unidentified threat actors broke into its systems and stole files containing some of BIG-IP’s source code and information related to undisclosed vulnerabilities in the product. It attributed the activity to a “highly sophisticated nation-state threat actor,” adding the adversary maintained long-term, persistent access to its …
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U.S. cybersecurity company F5 disclosed that nation-state hackers breached its systems and stole undisclosed BIG-IP security vulnerabilities and source code. The company states that it first became aware of the breach on August 9, 2025, with its investigations revealing that the attackers had gained long-term access to its system, including the company’s BIG-IP product development environment and engineering knowledge management platform. F5 is …
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