Cybersecurity firm F5 falls after reporting nation-state hack

F5

15/10/2025 20:11

** Cybersecurity firm F5's FFIV.O shares down 4.3% at $328.33

** FFIV says it had detected unauthorized access to certain company systems by sophisticated nation-state threat actor, but breach had no impact on its operations

** Cybersecurity and Infrastructure Security Agency says hackers had compromised FFIV's systems and extracted files, including portion of its source code and information about vulnerabilities

** Hackers could use knowledge as roadmap to break into F5 devices and software, something that could eventually lead to full compromise of targeted networks, CISA says

** British authorities also issued alert urging F5 users to update their software

** FFIV had risen 36.5% YTD, as of last close

 (Reporting by Juby Babu in Mexico City)

 ((Juby.Babu@thomsonreuters.com;))