F5(US:FFIV) Prnewswire·2025-11-01 14:05Core Viewpoint - F5, Inc. is under investigation for potential violations of federal securities laws following a significant security breach that resulted in unauthorized access to its systems and the exfiltration of sensitive information, including source code and undisclosed vulnerabilities [2]. Group 1: Company Information - On October 15, 2025, F5 disclosed that a sophisticated nation-state threat actor gained unauthorized access to its systems on August 9, 2025 [2]. - The investigation revealed that the threat actor maintained long-term access to F5 systems, including the BIG-IP product development environment and engineering knowledge management platform [2]. - Certain files were exfiltrated during the breach, which included portions of the BIG-IP source code and information about undisclosed vulnerabilities [2]. Group 2: Market Reaction - Following the disclosure of the security breach, F5's stock price fell over 10%, dropping from a close of $330.75 on October 15, 2025, to $295.35 on October 16, 2025 [2].