NSA Warns: Fast Flux Technique Threatens Critical Infrastructure
2025-04-04

The National Security Agency (NSA) has warned that a technique known as "fast flux," used by hostile nation-states and ransomware groups to hide their operations, poses a significant threat to critical infrastructure and national security. Fast flux allows decentralized networks to evade takedown attempts by rapidly cycling through IP addresses and domain names. This constant change makes identifying the true source of attacks extremely difficult and provides redundancy. The NSA, FBI, and their allies urge enhanced cybersecurity defenses to counter this growing threat.
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