norm: f5NAICS Computer Communications Equipment · USno LEI · CIK 0001048695Max severity: Low

Canonical registry

F5, Inc.

ent_019dd16e28645b3db2fef1e9d7978cfe

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Disclosures

1

SEC 8-K · 1 jurisdiction

Incidents

—

no linked incident in sample

Max affected reported

—

no filed count in sample

Leak-site claims

0

none in sample

Identity resolution

Canonical name: F5, Inc.
Normalized: f5— dedupe via name-norm; Microsoft / MSFT collapse to one row
GLEIF LEI: No match
SEC EDGAR CIK: 0001048695
Domain: f5.com

Disclosure history (1)newest first

FEDERALSEC 8-Kas victim2025-10-15
F5, Inc. disclosed on October 15, 2025 that on August 9, 2025 it learned a sophisticated nation-state threat actor had gained long-term persistent access to certain systems, including its BIG-IP product development environment and engineering knowledge management platform. Files were exfiltrated containing portions of BIG-IP source code, information on undisclosed vulnerabilities, and configuration/implementation data for a small percentage of customers. DOJ granted an Item 1.05(c) disclosure delay on September 12, 2025.