The group said it had used a distributed denial of service attack (DDoS) which bombards a target website with so much data that it becomes overwhelmed.
Jake Davis, 18, was charged with unauthorised computer access and conspiracy to carry out a distributed denial of service attack on the Serious Organised Crime Agency's website.
Sony was the target of a number of cyber attacks last year, kicking off with a distributed denial of service attack by the hacktivist and trolling network Anonymous in April 2011.
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Forbes colleague Kelly Clay has posted five reasons why Website publishers to should leave GoDaddy, the Internet registrar and site host hit today with a massive distributed denial of service attack, allegedly by hackers who claim to be aligned with Anonymous, the shadowy online activist group.
Within hours, according to the cybersecurity researchers at Panda Labs, the loose group of hackers that calls itself Anonymous launched a distributed denial of service attack that threw junk traffic at the web server of the blog that had made the WikiLeaks announcement, and by 4am had taken the site offline.
In 2002 they were flooded with traffic from tens of thousands of infected computers in an unsolved "distributed denial of service" attack.
Spamhaus servers were hit with a huge amount of data via an attack technique known as a Distributed Denial of Service (DDoS) attack.
Spamhaus accused Cyberbunker, a Dutch Web-hosting company, of coordinating the so-called distributed denial-of-service attack against it, according to a report by the British Broadcasting Corp.
Rouland points out that ISS Tuesday discovered a chat room called "IP Victims" on Yahoo that is being used for the exchange of IP addresses of machines compromised by the Trojan horse Back Orifice and an older distributed denial-of-service attack tool called Sub Seven.
That means they could be used to launch a distributed denial-of-service attack on a victim's computer.
The distributed denial-of-service attack failed to crash those payment networks, but David says Anonymous did manage to poke around their back-end computer systems.
This is a Distributed Denial of Service (DDoS) attack, and it is well within the capabilities of a botnet.
It appears the site suffered from a Distributed Denial of Service (DDoS) attack over the course of Tuesday and Wednesday.
This so-called Distributed Denial of Service (DDoS) attack relies on having enough users, voluntary or not, to flood a site with so much traffic that it gets shunted offline.
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The UK Serious Organised Crime agency took its website offline for several hours on 20 June after it appeared to be a victim of a distributed denial of service (DDoS) attack.
If the Twitter handle really is behind the outrage, via what he claims was a distributed denial of service (DDoS) attack coordinated by public and private bot scripts, his motivations are unclear.
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In a tweet on its Twitter feed, MTGox said it was fighting off a distributed denial-of-service (DDoS) attack, which involves a site being bombarded with huge amounts of data.
One of the Internet Protocol (IP) addresses used to break into Nonghyup's system was the same as one used in March for a distributed denial-of-service (DDoS) attack that originated in North Korea, they added.
Botnets can send spam and flood Web sites with countless requests for information, a cyber attack also known as distributed denial of service.
Security experts said the attack used more sophisticated techniques than most distributed denial of service, or DDoS, attacks and targeted the Web's infrastructure, which led to other sites performing slowly.
Security experts say the attack uses more sophisticated techniques than most DDOS (distributed denial of service) attacks and targets the Web's infrastructure, which has led to other sites performing slowly.
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