Monthly Archives: February 2016

How White Hat Hackers Stole Crypto Keys from an Offline Laptop in Another Room | Motherboard

The so-called side-channel attacks – in which attackers steal information from a machine they don’t have direct access to – are getting more popular these days. This is another innovative example of a side-channel attack. The target laptop was not connected to any network (either through LAN or Wifi) and yet the attackers managed to obtain the encryption keys from it.

“The attacks are completely non-intrusive: we did not modify the targets or open their chassis.”

Source: How White Hat Hackers Stole Crypto Keys from an Offline Laptop in Another Room | Motherboard

No POST after rm -rf / / Kernel & Hardware / Arch Linux Forums

This is pretty serious. Someone just bricked his laptop by executing a rm -rf / command as root in Linux. As in destroyed. None of your usual BIOS/UEFI prompts appear and no hotkeys can help to restore the firmware.

The root (pardon the pun) of the problem appears to be traced to the mounting of /sys/firmware/efi/efivars as rw by systemd. systemd maintainer (Poettering) refuses to fix the issue.

100_05201

Source: No POST after rm -rf / / Kernel & Hardware / Arch Linux Forums