John E. Dunn

John Dunn has been covering the IT industry for more than 30 years, specializing in cybersecurity, mobile, cloud, privacy, and networking. His work has appeared in numerous tech titles, including Computerworld, PC World, The Register, Which Computing, Forbes, and Naked Security. In 2003, he co-founded IDG's Techworld.
Recent posts by John E. Dunn

If you had to name a piece of software cybercriminals look to target, Microsoft’s Exchange Server would surely be near the top of the list. To its huge user base, it’s the perfect DIY in-house email system that has dovetailed with Microsoft’s ecosystem since the 1990s. To criminals, including ransomware criminals, it’s become tempting prey […]

How realistic would it be for ransomware to successfully exploit weaknesses in the obscure firmware systems running inside PCs? There’s certainly a lot of things to aim at, ranging from the UEFI BIOS that boots PCs to the many other barely-documented firmware running on chips most owners pay absolutely no attention to. An unfortunate characteristic […]

In less than a decade, ransomware has turned from something tech people discussed at cybersecurity conferences to a phenomenon that fills news websites with tales of damage and desperation on a daily basis. But despite this, ransomware still sometimes feels like a background war where one side takes heavy casualties but reacts with little more […]

If there’s a story with a moral we understand without the need for explanation, it’s the legend of Robin Hood, the outlaw who stole from the rich to help the poor. Pointing out that Robin Hood never existed would be to miss the point—the need for a figure who rights the world’s injustices is a […]

In the beginning, ransomware gangs went after individuals and smaller businesses. As they grew in confidence, they moved on to medium-sized companies before becoming so sure of themselves they decided to take on some of the largest multi-nationals in the world. In recent weeks, it seems the notorious Conti group has come up with an […]

The war between Ukraine and Russia has disrupted the business model of ransomware attackers, or so it’s said. It’s an idea that’s been discussed since the war began in February, and now we have some official confirmation that perhaps this isn’t entirely wishful thinking. The venue was the recent U.K. National Cyber Security Centre’s CYBERUK […]

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