F5(US:FFIV) Prnewswire·2026-01-08 18:23Core Viewpoint - A securities class action lawsuit has been filed against F5, Inc. following a significant cybersecurity incident that was disclosed on October 15 and 27, 2025, which negatively impacted the company's expected revenues for 2026 [1][2]. Group 1: Incident Details - F5, Inc. experienced a "material cybersecurity incident" that was discovered on August 9, 2025, involving a breach of its BIG-IP source code [1][5]. - The company initially claimed that the incident had "not had a material impact on the Company's operations," but this was contradicted by subsequent disclosures [6]. - The breach was attributed to a "highly sophisticated nation-state threat actor" who allegedly maintained persistent access to F5's systems for at least a year [5]. Group 2: Financial Impact - Following the October 15, 2025 disclosure, F5's stock price fell by $35.40, a decrease of 10% [6]. - On October 27, 2025, F5 provided disappointing revenue growth forecasts for 2026, predicting only 0% to 4% growth compared to 10% in 2025, which led to a further decline in stock price by $22.83, or 7% [7]. - The revenue guidance was linked to delayed deals and reduced renewals specifically due to the breach, which was below analyst consensus estimates [7]. Group 3: Legal Proceedings - The lawsuit seeks to represent investors who purchased F5 securities between October 28, 2024, and October 27, 2025, with a lead plaintiff deadline set for February 17, 2026 [4][9]. - Hagens Berman is investigating whether F5 misled investors regarding the security of its products and the financial impact of the incident [3][8].