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Two new email worms are exploiting interest in the World Cup to attack computers and turn them into part of a botnet. "Piggyback spam" is the lastest technique to lure users into opening a malicous file in an attempt to extend botnet networks, warns security vendor Marshal. Two hackers have been jailed in the Netherlands for infecting millions of computers with malware and stealing personal data, including credit card details, to purchase electronic goods. Experts warn of 'explosive growth' in cyber-fraud, theft, spam and viruses. The use of image spam continues to grow, now accounting for as much as two-thirds of all spam, security researchers said this week. Russian authorities accused of collusion with botnet owners. Just as bacteria evolve around the technological barriers we put in their place, so too do the tactics and strategies employed by computer attackers. When a security measure is put in place, our enemies immediately set out to exploit its weakness. When they are repelled, they adapt their tactics and strategies, regroup and come back yet again. The SANS Institute, (SysAdmin, Audit, Network, Security Institute), has for the first time named human error to its twice-annual Top 20 Internet Security Attack Targets list, a line-up that, until now, was reserved solely for technology. October saw a sharp increase in zombie activity and spam levels as criminals target users in the weeks before Christmas, a new report revealed today. Researchers with McAfee released a whitepaper today that claims botnets could feasibly threaten most countries' infrastructures. Several security organizations today are reporting new increased exploits of a critical Windows server service vulnerability patched by the MS06-040 security bulletin, but Microsoft officials still insist the attacks should be limited. “Tell me what you want, and I’ll find a solution. I have many datacentres and options...” What is it? A California man was sentenced to three years in prison last week for hacking into thousands of PCs, including some within the U.S. Department of Defense. With so much money being moved online these days, cyber criminals are getting greedy - and smarter. Mark Mayne asks the experts for advice. A U.S. man has pleaded guilty of creating a zombie network of 50,000 computers to launch a devastating attack against a Seattle hospital. Two years ago, Bill Gates made the brave prediction that spam would soon be “a thing of the past.” But it currently makes up between 60 and 90 percent of the world’s email traffic, and by all accounts is not going away. If anything, this year will see spam reaching new heights. Spam, trojans, keyloggers and every variety of virus are on the increase, making life harder for information security professionals. René Millman assesses the scale of this onslaught