Case Study

DoS and DDoS Attack Mitigation Case Study

To Minimize Business Risk, This Trading Firm Called Prolexic to Stop DDoS Attacks

Find out why the DDoS attacks that took down two trading firms didn’t keep one down for long

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Two large U.S. online options trading firms were the target of simultaneous extortion demands from hackers threatening continued distributed denial of service (DDoS) attacks. At first, the companies were able to block the attacks, but when the attacker began to change vectors and signatures more frequently, they lost ground. Company A engaged Prolexic to stop the DDoS attacks; Company B sought DDoS mitigation services from a large Internet services company.

Prolexic stopped the DDoS denial of service attack for its client, Company A, within an hour – stopping an encrypted Layer 7 attack and providing the hackers’ IP addresses for FBI follow-up. Company B remained offline for 48 hours as its DDoS mitigation service provider struggled to deal with the cyber attack.


“It was immediately apparent to the Prolexic technicians that encrypted Layer 7 attacks were being used. Prolexic was able to respond immediately to the attacker’s changing tactics with real-time monitoring of Layer 7 traffic. The company’s CTO was so impressed with Prolexic’s expertise and responsiveness he called the other options trading firm that was still under attack – a competitor – and recommended they use Prolexic.”

Protect your organization from DoS and DDoS attacks. In this case study you’ll learn how a trading firm faced DDoS denial of service attacks until Prolexic stopped the attacks. DDoS attacks end here.

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