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The Black hat security conference held in Las Vegas last week experienced a major problem – in the shape of three French journalists. When researcher Dan Kaminsky reveals details behind the major DNS protocol vulnerability next month at Black Hat, it may not be such a surprise anymore. Security researcher Dan Kaminsky has delivered his much-anticipated report on the DNS flaw he discovered earlier this year. German security researcher Thomas Dullien (better known as Halvar Flake) has been stopped at the US border and deported after customs officials decided he could not visit the BlackHat security conference currently underway in Las Vegas. Experts convened at BlackHat on Wednesday reported that the spyware threat continues to increase and it will remain unbeatable while jurisdictional issues between government enforcement bodies persist. Infrastructure and IT services provider Redstone Managed Solutions has acquired Tolerant Systems, a UK network security company. How can you be sure your security works unless someone tried to crack it - and failed? Rob Buckley delves into the world of penetration testing. Macintosh enthusiasts have long used the security of their systems as a flag to wave in the faces of their Windows-using counterparts. With the recent announcement of some key holes in Mac OS X, that flag is drooping. Marketing company CMP Media has acquired Black Hat, an information security trainer and conference organizer, this week for $10 million. Open-source software, security certifications, and emerging threats were among the topics a panel of CISOs pondered at the Black Hat Briefings in Las Vegas. Cisco Systems and Internet Security Systems jointly sued a researcher who presented data on vulnerabilities in Cisco router software at the Black Hat Briefings in Las Vegas. Open source software (OSS) is firmly entrenched in the infrastructure of the Internet, and is now making inroads into the security market too. But although the darling of techies everywhere, OSS has its doubters. In particular, many corporate managers have concerns about support, accountability, and longevity. I rarely make a bet, but if you asked me whether I'd wager some money on the likelihood of an organisation employing a hacker to assess their security risk, I'd almost certainly accept on the basis that they would not. Spam is a monumentally irritating and expensive problem for corporate and home users. Absolutely no one is immune. While there is slim hope for a silver bullet, Andy Coote explains what is being done to combat spam For over two years a group of very talented folks have been collecting attack information on a honeynet and analyzing the activities of blackhats attacking an exposed and unprotected suite of computers of different types. Observation and monitoring of computer intruders have long been performed in a haphazard fashion, if at all.