CISA has issued a warning highlighting the growing threat of fast flux attacks, which involve the rapid alteration of DNS records to obscure malicious servers. This technique enables cybercriminals and nation-state actors to maintain control over infected systems by creating resilient command and control infrastructure. The agency, alongside other international partners, considers this method a significant threat to national security. Fast flux can evade cybersecurity measures, making it crucial for organizations and ISPs to bolster protections against such deceptive tactics.
"CISA, the FBI, and cyber authorities in Australia, Canada, and New Zealand consider such DNS deception a threat to national security."
"Malicious cyber actors use fast flux to obfuscate the locations of malicious servers by rapidly changing Domain Name System (DNS) records."
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