F5(US:FFIV) Businesswire·2026-01-12 23:00Core Viewpoint - F5, Inc. is facing a class action lawsuit due to allegations of securities fraud related to misleading statements about its cybersecurity capabilities during a significant security breach [2][3]. Group 1: Lawsuit Details - The class action lawsuit is on behalf of investors who purchased F5 securities between October 28, 2024, and October 27, 2025, alleging that the company made materially false statements regarding its cybersecurity effectiveness [2]. - The lawsuit claims that F5 concealed material adverse facts about its security capabilities, particularly that it was experiencing a significant security breach affecting key offerings [2]. Group 2: Security Breach Revelation - On October 15, 2025, F5 disclosed that a sophisticated nation-state threat actor had gained unauthorized access to its systems, maintaining long-term access and exfiltrating files, including portions of the BIG-IP source code [3]. - Following the revelation of the security breach, F5's share price dropped by $35.40, or approximately 10.70%, from $330.75 to $295.35 within a day [3].