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Security Leftovers

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Security
  • Hackers use Microsoft security tool to pwn Microsoft security tool

    FireEye security wonks Abdulellah Alsaheel and Raghav Pande have twisted the barrels of Microsoft's lauded EMET Windows defence gun 180 degrees and fired.

    The result of their research is p0wnage of the enhanced mitigation toolkit so that instead of defending Windows it attacks it.

    The attacks the pair found affect older versions of Windows which rely on EMET for modern defences like address space layout randomisation and data execution prevention.

  • Is Linux Really as Secure as You Think It Is?

    Security is an important topic on everyone’s minds in today’s highly-technological world. With all of the security news that pops up on almost a daily basis, trying to be aware of the choices you make can make a big difference. Linux is often touted as the most secure operating system you can get your hands onto, but is this reputation deserved?

  • A Fedora Distribution download primer

    With the fresh news of a compromise in the Linux Mint distribution images, I thought I would take a few minutes to explain how Fedora handles image downloads and what you can do as an end user to make sure you have the correct and official Fedora images.

  • Mousejack: Hacking Computers Via Your Mouse With 15 Lines Of Code And Radio Dongle
  • How Criminals Could Hijack Wireless Mice to Hack Computers from Afar

    Wireless computer mice give users the convenience of not having to deal with cumbersome wires and cables. But they might also open up the door for malicious hackers to get a way into their computers, researchers warn.

    A flaw in the way several popular models of wireless mice and their corresponding receivers, the sticks or “dongles” that plug into a USB port and transmit data between the mouse and the computer, handle encryption could leave “billions” of computers vulnerable to hackers, security firm Bastille warned on Tuesday.

  • Child tracking firm calls out security researcher on 'hack'

    A CHILD MONITORING COMPANY is mad as heck at a security researcher for highlighting a security problem without asking its consent first. Or something.

    The company in question is uKnowkids and its target is a chap called Chris Vickery, a security researcher. His crime? Security research.

    uKnowKids.com is a kind of virtual Mary Poppins. It does not put children in danger, like Mary Poppins, but it does look out for them and keep an eye on what they do by monitoring their communications and stuff.

    We imagine that in some circumstance it has got some children in trouble. This week it is getting an older person in trouble, and accusing a security researcher of hacking as opposed to security researching.

  • URL shortening – are these services now too big a security risk to use?

    Spammers and malware pushers are still heavily abusing URL shortening services, messaging security firm Cloudmark has reported in its 2015 annual security report (reg required). The popular Bit.ly service has recently become a particular favourite with criminals with 25,000 individual malicious links run though that service every single day in recent times. This sounds alarming but it gets worse. According to the firm, this meant that an extraordinary 97 percent of Bit.ly links now led to malicious websites.

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Ryzen 7 2700X CPUFreq Scaling Governor Benchmarks On Ubuntu Linux

With this week's Ryzen 5 2600X + Ryzen 7 2700X benchmarks some thought the CPUFreq scaling driver or rather its governors may have been limiting the performance of these Zen+ CPUs, so I ran some additional benchmarks this weekend. Those launch-day Ryzen 5 2600X / Ryzen 7 2700X Ubuntu Linux benchmarks were using the "performance" governor, but some have alleged that the performance governor may now actually hurt AMD systems... Ondemand, of course, is the default CPUFreq governor on Ubuntu and most other Linux distributions. Some also have said the "schedutil" governor that makes use of the kernel's scheduler utilization data may do better on AMD. So I ran some extra benchmarks while changing between CPUFreq's ondemand (default), performance (normally the best for performance, and what was used in our CPU tests), schedutil (the newest option), and powersave (if you really just care about conserving power). Read more