Tag: security

Over the Antarctic, the Smallest Ozone Hole In a Decade

hypnosec writes “The ozone layer seems to be on a road to recovery over Antarctica; according to Europe’s MetOp weather satellite, which is monitoring atmospheric ozone, the hole over the South Pole in 2012 was the smallest it’s been in the last 10 years. The decrease in size of the hole is probably the result of reduction in the concentration of CFCs, especially since the mid-1990s, because of international agreements like the Montreal Protocol.” Read more of this story at Slashdot.

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Over the Antarctic, the Smallest Ozone Hole In a Decade

Linux Foundation’s Secure Boot Pre-Bootloader Released

hypnosec writes “The Linux Foundation’s UEFI Secure Boot pre-bootloader for independent Linux distros and software developers has finally been released. Announcing the release of the secure boot system James Bottomley noted that the signed pre-bootloader was delivered by Microsoft on February 6th. Bottomley has released two validated files PreLoader.efi and HashTool.efi. Bottomley has also created a bootable mini-USB image that provides “an EFI shell where the kernel should be and uses Gummiboot to boot.” Just last week the pre-bootloader had to be rewritten to accommodate booting of all versions of Linux.” Read more of this story at Slashdot.

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Linux Foundation’s Secure Boot Pre-Bootloader Released

Printable AR-15 Mag Gets More Reliable; YouTube Pulls Video of Demo

Wired reports that the 3-D printed AR-15 magazine from Defense Distributed we mentioned a few weeks back has been improved through design, and is now robust enough to last through firing (at least) several hundred rounds, rather than fewer than a hundred as in the previous iteration. CNET says the video demonstration on YouTube was first yanked, then restored, but as of now seems to have been yanked again. Read more of this story at Slashdot.

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Printable AR-15 Mag Gets More Reliable; YouTube Pulls Video of Demo

Ants Use Sound To Communicate

sciencehabit writes “A new study shows that ant pupae—a stage between larvae and adult—can communicate via sound, and that this communication can be crucial to their survival. The young insects have a specialized spike along their abdomen that they stroke with one of their hind legs, similar to dragging the teeth of a comb along the edge of a table. This noise serves primarily as an emergency beacon, allowing the ants to shout for help when being threatened by a predator.” Read more of this story at Slashdot.

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Ants Use Sound To Communicate