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It's hard to believe that it's been a year since the Code Red worm was making its way across the globe. Observation and monitoring of computer intruders have long been performed in a haphazard fashion, if at all. Recently, a patron was purchasing a pair of sunglasses at a shopping mall kiosk. Trotting through the shiny new airport terminal in Brussels recently, I was surprised to be asked to verify my credit card purchases in the duty-free shop with a PIN instead of a signature. A couple of weeks ago I had the opportunity to sit in on a class on computer forensics, courtesy of Guidance Software. Recently, a patron was purchasing a pair of sunglasses at a shopping mall kiosk. Regular readers of SC's Opinionwire will recall me wibbling on about how credit and debit card issuers are moving steadily towards PIN-based authorization of transactions. The public sector IT market is enjoying healthy growth in many developed countries. We live in a new era of blended threats, worm viruses and a host of new breeds of malicious mobile code that are more dangerous than ever. Co-incident with the news about the formation of the U.S. Department of Homeland Defense is the breaking of a story about a Defense Advanced Research Projects Agency (DARPA) ‘research project’ exploring the viability of sifting through huge amounts of transaction data looking for possible terrorist activities. In a post-Sept. 11 world, the security community is being asked to address a growing list of sobering scenarios that range from the newly plausible to the truly frightening. This is the second part of a two-part article. The first part discussed security tools used to protect data integrity and the related business processes within an organization: (www.scmagazine.com/scmagazine/sc-online/2002/article/48/article.html). A generation ago, the world of espionage and counter-intelligence was populated by agents who operated in the shadows of eavesdropping, codes and hollowed-out books to collect and transmit important information. 2001 was without any doubt the year of vulnerabilities. Best practice (ISO 17799) advocates the development of information security policies to ensure the confidentiality, integrity and availability of information. Microsoft's Windows XP operating system has arrived amid a multi-million dollar worldwide marketing fanfare the like of which we rarely see. Due to the abundance of Internet security attacks, the news over the past year has been flooded with warnings and reports of numerous network vulnerabilities. Today, hackers scan and probe sites of all sizes to find those most vulnerable to e-shoplifting, data theft or portals to access broader attacks. This has been a very good year - especially for the hackers. Ben Rothke wonders if we have learned anything from the experience Even the best of security policies will be ineffectual without proper implementation, says Gunter Ollmann