Inside the Biggest Cyberattack in History

Alex Fitzpatrick 2 hours ago

 

A cyberattack originally targeting a single company is now being described by experts as one of the biggest Distributed Denial of Service (DDoS) attacks in Internet history. The assault, which recently began impacting elements of the Internet's physical infrastructure, has been dragging down Internet speeds in Europe — but what makes this type of attack different from all other attacks?

First, some background: The attacks originally targeted a European anti-spam company called Spamhaus, which blacklists what it considers sources of email spam and sells those blacklists to Internet Service Providers. The attack began early last week as waves of large but typical DDoS assaults shortly after Spamhaus blacklisted Cyberbunker, a controversial web hosting company. Cyberbunker has not directly taken responsibility for the attacks against Spamhaus.

In a common DDoS attack, hackers use thousands of computers to send bogus traffic at a particular server in the hopes of overloading it. The computers involved in DDoS attacks have often been previously infected with malware that gave a hacker control of the machine without the legitimate owner's knowledge. Hackers use malware (often sent via email spam) to amass large networks of infected computers, called "botnets," for DDoS operations and other purposes.

Spamhaus contracted with security firm CloudFlare to help mitigate the attacks soon after they began. CloudFlare has been defending Spamhaus by spreading the attacks across multiple data centers, a technique that can keep a website online even if it's hit by the maximum amount of traffic a typical DDoS can generate.

READ MORE: http://mashable.com/2013/03/27/biggest-cyberattack/