security links

«For a long time I’ve wanted an ssh-agent setup that would ask me before every use, so I could slightly more comfortably forward authentication over SSH without worrying that my session might get hijacked somewhere at the remote end (I often find myself wanting to pull authenticated git repos on remote hosts). I’m at DebConf this week, which is an ideal time to dig further into these things, so I did so today. As is often the case it turns out this is already possible, if you know how.»
«Operation Tamarisk was a Cold War-era operation run by the military intelligence services of the U.S., U.K., and France through their military liaison missions in East Germany, that gathered discarded paper, letters, and garbage from Soviet trash bins and military maneuvers, including used toilet paper.»
«This post describes my fruitless effort to convince Microsoft employees that Their service is vulnerable, and the humiliation one has to go through should One’s account be blocked by a hacker. This is a story of ignorance, pain and Despair.»
A coloring book to help folks understand how SELinux works. - mairin/selinux-coloring-book
The EURion constellation (also known as Omron rings[1] or doughnuts[2]) is a pattern of symbols incorporated into a number of banknote designs worldwide since about 1996. It is added to help imaging software detect the presence of a banknote in a digital image. Such software can then block the user from reproducing banknotes to prevent counterfeiting using colour photocopiers. According to research from 2004, the EURion constellation is used for colour photocopiers but probably not used in computer software.[3] It has been reported that Adobe Photoshop will not allow editing of an image of a banknote, but in some versions this is believed to be due to a different, unknown digital watermark rather than the EURion constellation.[4][3]
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