Security shop F5 today said "highly sophisticated nation-state" hackers broke into its network and stole BIG-IP source code, undisclosed vulnerability details, and customer configuration data belonging to a "small percentage" of its users.

"The Company is currently reviewing the contents of these files and will communicate with affected customers directly as appropriate," F5 said in a US Securities and Exchange Commission filing .

While F5 didn't name the suspected nation-state in any of its disclosures, the feds and private security researchers have recently accused both Russia and China of breaking into critical networks and stealing sensitive information .

The company said that it discovered the network intruders in early August, and during its investigation determined that they had

See Full Page