An e-mail worm is recruiting computers for a coordinated attack on antivirus vendor Symantec's Web site.
A new worm that leaves behind two Trojan horse programs has begun spreading over the Internet, and may be paving the way for a crippling distributed denial of service (DDoS) attack.
A wave of Distributed Denial of Service (DDoS) attacks against hosting giant WebCentral, which began on Saturday, downed the network for a second time today.
Late last week, leaders of a group of Chinese hackers called off a planned denial of service attack on CNN.com, after it was reported on the same day that the attack would occur over the weekend, in protest at "anti-Chinese" media across the Western world.
One year ago, the Estonian government moved a war memorial honouring Russian-Estonians who died fighting the Nazis, a move that may have triggered what some believe is the first instance of a sustained, international cyberwar.
The world of IT security is in chaos, with CSOs seemingly on the front lines of a full scale global cyberwar being fought out by government hackers, botnet-controlling criminal gangs and compromised Web sites. Can we ever hope to keep networks safe in such an environment?
Just as Internet users learn that clicking on a link in an e-mail purporting to come from their bank is a bad idea, phishers seem to be developing a new tactic -- launch a DDoS attack on the Web site of the company whose customers they are targeting and then send e-mails "explaining" the outage and offering an "alternative" URL.
Botnet operators have become public enemy number-one as consumers, businesses and governments fall foul to identity theft, DDoS attacks and spam. Yet no one appears to be able to stop the spread of bots -- except maybe the media.
The CIO of a rather large Australian company recently told me that the firm was happy with its security set-up but then quickly made a U-turn. Would that statement, on record, effectively lay down a hacker challenge?
Plans are afoot to attack spammers by launching the kind of cyber-attack favoured by organised crime and hackers with an axe to grind.
The latest variant of the Zafi worm was discovered on Wednesday and unlike the previous two variants, Zafi.C has been coded to launch a DDoS attack against Google.com, Microsoft.com and miniszterelnok.hu, which is the Web site of the Hungarian Prime Minister.
Security researchers have been infiltrating denial of service 'botnets' to study what may be an unstoppable Distributed Denial of Service (DoS) technique.
The idea that attacks on computer systems could provide an alternative method of spreading terror and disruption has been a concern for governments since IT systems began to proliferate.
A very clever mass-mailing worm is spreading rapidly across the Internet and has many different components, each timed to trigger different processes.
In 2002, users and companies got a respite from the disruptive viruses of 2001. But a more sophisticated generation of worms is on the way.
This week I'd like to call your attention to a report that provides an insider's view of what happens when teenage hackers use hundreds of open-port PCs like yours and mine to shut down Web sites in what is commonly known as a distributed denial-of-service attack (DDoS).
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