During every quarter last year, between 10% and 16% of organizations had DNS traffic originating on their networks towards command-and-control (C2) servers associated with known botnets and various other malware threats, according to a report from cloud and content delivery network provider Akamai. More than a quarter of that traffic went to servers belonging to initial access brokers, attackers who sell access into corporate networks to other cybercriminals, the report stated.

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