#USA #Cybersecurity #San Francisco #F5 #Hagens Berman

Hagens Berman Initiates Investigation Into F5, Inc.

The well-known national shareholder rights law firm, Hagens Berman, has stepped up to investigate F5, Inc. (NASDAQ: FFIV) amid claims regarding long-term undetected cyberattacks and alleged manipulation of information related to its security measures. As of February 9, 2026, the firm is reportedly notifying investors about a potential class action lawsuit that has raised significant concerns for F5 shareholders.

Core Allegations Against F5

The foundation of the investigation centers on allegations that executives of F5 misrepresented the security of their BIG-IP products. Reports suggest that while the company confidently marketed its comprehensive security features, a substantial cybersecurity breach occurred that went undisclosed for an extended period. This breach was reportedly orchestrated by sophisticated actors believed to be affiliated with a nation-state, granting them persistent access to F5's systems, which allowed for the extraction of sensitive source code.

In particular, F5 disclosed in October 2025 that a highly sophisticated threat actor maintained long-term access to certain systems, including crucial environments related to the BIG-IP product. This revelation led to significant repercussions in the financial markets, as shares of F5 plummeted nearly 14% over the course of just two trading days following the disclosure.

Significant Financial Impact

The fallout from these security concerns has not only impacted consumer trust but has also prompted analysts to lower their forecasts for F5’s future earnings. On October 27, 2025, the company reported disappointing fourth-quarter financial results, which were primarily linked to the repercussions of the cybersecurity breach, including a drastic cut in revenue guidance. F5's announcement revealed expected reductions in sales, elongated sales cycles, and increased costs due to ongoing efforts to remediate the vulnerabilities.

Investors and shareholders were left grappling with a loss greater than $2 billion in market value as a result of these developments. Following the negative earnings report, F5's stock took another hit, closing down by $22.83 or 7%, exacerbated by multiple rating downgrades from financial analysts.

Investor Advisory and Next Steps

Reed Kathrein, the Hagens Berman partner spearheading this investigation, articulated the firm's commitment to examining whether F5 failed to promptly disclose the substantial cybersecurity event involved in this case. "Our focus is on ensuring investor rights are protected and to uncover the truth behind these claims," said Kathrein.

For investors who purchased F5 shares during the class period, which spans from October 28, 2024, to October 27, 2025, and have suffered losses, the firm encourages them to come forward. They may be eligible to become lead plaintiffs in the ongoing class action case. The deadline for joining as a lead plaintiff is February 17, 2026.

If you are an affected investor, Hagens Berman has set up a secure form on their website for reporting losses, and interested parties are advised to contact them via phone or email for more detailed information about their rights and options in this evolving situation.

Conclusion

Hagens Berman's reputation as a leading firm in complex securities fraud class actions underscores the critical nature of corporate accountability, especially in the face of substantial cybersecurity risks. As investigations continue, stakeholders await further developments on how F5 will maneuver through its current challenges and what this could mean for future investors and clients alike.

For the latest information regarding the F5 investigation and other related updates, interested parties are encouraged to follow Hagens Berman on their social media or visit their official website.