F5, Inc. (FFIV) Cybersecurity Incident-Related Securities Class Action Pending As Adverse Financial Impact Clarified – Hagens Berman
01/07/2026 06:35 PM • F5, Inc. faces a securities class action lawsuit following disclosure of a material cybersecurity breach discovered on August 9, 2025. The company's BIG-IP source code was compromised by a sophisticated threat actor with persistent access. F5's delayed disclosure and subsequent revelation of significantly reduced 2026 revenue guidance (0-4% growth vs. 10% in 2025) triggered sharp stock declines of 10% and 7% on announcement dates. The lawsuit questions whether management knew about the breach's materiality before public disclosure.
FFIV - F5 experienced a material cybersecurity breach with persistent unauthorized access to its engineering platforms and BIG-IP source code. The company faces a securities class action lawsuit alleging misleading disclosures and delayed reporting. Stock prices declined sharply (10% and 7%) following breach announcements, and 2026 revenue guidance was significantly reduced to 0-4% growth, well below analyst expectations, indicating substantial operational and financial impact.