Over 1.5 Million F5 BIG-IP Load Balancers Found Exposed Online

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A scan of the internet on September 26, 2026, found 1.58 million F5 BIG-IP load balancer systems. Of these, over 55,000 systems had their management interface exposed on port 443. Security researchers warn that these management interfaces are high-value targets due to the sensitive data and system access they control. The exposure of these interfaces increases the potential attack surface for organizations using the devices. Experts recommend isolating management interfaces and following vendor security baselines to mitigate risks.

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