DNS server problems at the U.S. National Security Agency have knocked the secretive intelligence agency site offline for several hours. Reports suggest various possible reasons including an internal routing problem of some sort on their side or errors in firewall or ACL [access control list] policy. Other possibilities are speculated to be a technical glitch or a hacking incident.

The NSA is responsible for analysis of foreign communications, but it is also charged with helping protect the U.S. government against cyber attacks — the outage is an embarrassment for the agency.

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Related topics: Cyberattack, Cybercrime, DNS, Security