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8 Biggest DDoS Attacks Today And What You Can Learn From Them

CRN asks technical experts at Netscout Arbor, Imperva, Cloudflare and SiteLock what the most threatening types of DDoS attacks today are and what businesses need to do to protect themselves.

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Pulse Wave Attacks

Pulse wave attacks have a specific structure to them that's designed to evade traditional detection methods, according to Logan Kipp, technical architect at Scottsdale, Ariz.-based SiteLock. Instead of one big, sustained attack over an hour, a pulse wave event takes these DDoS attack resources and spreads them out to many more clients, sending 60 one-minute attacks to 60 people, said Imperva's Hamilton.

Most providers require 10 minutes of data to put an effective DDoS mitigation strategy in place, Kipp said, so by cutting the traffic off early, the provider doesn't get enough data.

Only 45 seconds to 120 seconds of a 400-GBps attack are necessary to crash services and force initiation of a failover, Kipp said. However, many SMBs and even some midsize companies don't have a failover process in place, according to Kipp, which results in service actually being denied to legitimate users.

Businesses suffering a pulse wave incur a number of hidden expenses, Kipp said, including bandwidth costs, lost revenue, and the cost to investigate and deal with the postmortem recovery.

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