DNS amplification attacks continue to grow

DNS amplification attacks have grown by over 4,000 percent over the last year according to Nexusguard's latest threat report. DNSSEC (Domain Name System Security Extensions) remains the main source of growth in DNS amplification attacks in the quarter, but Nexusguard analysts have also detected a sharp and concerning rise in TCP SYN Flood attacks. Cyberattackers have long favored DDoS attacks that amplify damage beyond the resources required to launch them, but suitable reflectors or amplifiers are not as widely available for DNS amplification. Any server with an open TCP port though is an ideal attack vector, and such reflectors are… [Continue Reading]