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Network hardware and software vendor F5 has bought Defense.net, a security startup with cloud-based service for blocking distributed denial of service (DDoS) attacks that hit lots of servers and can bring down websites.
As a result of the deal, F5 will bolster its software lineup, which includes software for staving off DDoS attacks that hit companies’ on-premises data centers.
Barrett Lyon, who also founded DDoS mitigation company Prolexic, started Defense.net in late 2012. (Content-distribution network company Akamai bought Prolexic last year.) Lyon also was a character in the cyber thriller “Fatal System Error” by Joseph Menn.
DDoS mitigation has been hot lately. CloudFlare, which offers DDoS mitigation alongside other services, announced $50 million in funding in December. And two months earlier, Google announced a services for stop DDoS attacks from hitting the servers of non-profit organizations and other groups.
Terms of the deal were not disclosed in F5’s statement about the acquisition.
Belmont, Calif.-based Defense.net raised $9.5 million in venture funding last summer. Bessemer Venture Partners led the round.
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