http://www.networkworld.com/columnists/antonopoulos.html Network World columns by Andreas Antonopoulos. Network World, Inc. Copyright(C) 1994 - 2009 Network World, Inc. http://www.networkworld.com/columnists/2009/062409antonopoulos.html In the wake of Iran's statistically and historically dubious election results, the world has been glued to screens (both TV and IP) watching the unfolding protests and violence. Despite a complete media and communications blackout, the videos, photos and messages are leaking out continuously. But how are all these leaks occurring? Andreas M. Antonopoulos 2009-06-24T12:00:00-04:00 http://www.networkworld.com/columnists/2009/061009antonopoulos.html Data center architecture has been changing quite dramatically over the past few years. In many data centers, organic growth had left them broken up into application silos. The standard three-tier architecture was copied for each application leading to a fairly hierarchical network. In this architecture, some core security services, such as firewalls and intrusion prevention, were concentrated at the root of the network tree, closest to the ingress routers and around any DMZs. Andreas M. Antonopoulos 2009-06-10T12:00:00-04:00 http://www.networkworld.com/columnists/2009/052609antonopoulos.html Regulatory compliance continues to be the main driver for security spending in almost all industries. But in essence, compliance is assymetrical warfare: it costs a lot more to comply with new regulations than it does to write them. Andreas M. Antonopoulos 2009-05-26T12:00:00-04:00 http://www.networkworld.com/columnists/2009/051209-antonopoulos.html Cloud computing offers tremendous promise for the future of computing. In the cloud you will be able to link together remote computing resources to achieve massive amounts of computing without any of the capital infrastructure costs. Andreas M. Antonopoulos 2009-05-12T12:00:00-04:00 http://www.networkworld.com/columnists/2009/042909-andreas.html In the security business we spend a lot of time worrying about the "zero-day" threat that appears out of nowhere and immediately starts attacking a hereto unknown vulnerability. Andreas M. Antonopoulos 2009-04-29T12:00:00-04:00 http://www.networkworld.com/columnists/2009/041409antonopoulos.html If your security model is location-centric and depends on keeping things separate, how do you respond to a disruptive technology like unified communications? This is a pattern that keeps repeating in many different areas: the security paradigm looked good until a technology comes along, changes the assumptions and reveals the inadequacy of the model. Andreas M. Antonopoulos 2009-04-14T12:00:00-04:00 http://www.networkworld.com/columnists/2009/033109antonopoulos.html The built-in Webcam light is on. It shouldn't be on. I'm not using any recording, video-conferencing or photo applications. Why is it on? Is someone watching me? It's at times like this I get the eerie feeling that I don't actually, fully and completely own my machine. Turns out it was a driver problem, all fixed now. But I still can't shake that feeling. Andreas M. Antonopoulos 2009-03-31T12:00:00-04:00 http://www.networkworld.com/columnists/2009/031809antonopoulos.html Healthcare in the United States is going digital, which brings both tremendous opportunities and security risks. Digital healthcare brings the promise of increased quality of care, reduced errors and reduced cost and overhead in the provision of care. Yet the United States lags other countries in the use of technology in healthcare records. Fewer than 10% of hospitals and 16% of doctors use electronic health records. This is about to change. Andreas M. Antonopoulos 2009-03-18T12:00:00-04:00 http://www.networkworld.com/columnists/2009/030309-andreas.html In the movies the government has always got the best toys, the cutting edge technology and the tightest security standards. Those who have worked on security projects within the government know that in real life government security standards and implementations can vary all across the range from quite serious to laughable. Andreas M. Antonopoulos 2009-03-03T12:00:00-04:00 http://www.networkworld.com/columnists/2009/021709-andreas.html In November of 2008, a single scam netted more than $9m in a global ATM heist. According to the FBI the attackers compromised pre-paid payroll cards from RBS WorldPay and gift cards, launching a coordinated attack against more than 130 ATMs in 49 cities around the world. The cards were exploited by "cashers" who withdrew money during a single 30 minute window. Andreas M. Antonopoulos 2009-02-17T12:00:00-04:00