If this were a movie, we’d be laughing at the improbability of the premise — that encryption can be cracked by listening to the high-pitched sounds produced by a computer’s CPU as it decrypts data. But it’s real, and although it can be done at a distance of 4 meters with a parabolic microphone, the researchers (Daniel Genkin, Eran Tromer, and Adi Shamir, who is the S of the RSA cryptosystem) also showed that it could be done with a smartphone sitting next to a laptop. Upping the ante, they suggest that a microphone hidden inside a colocated server could eavesdrop on numerous nearby servers. In short, if security is paramount, both heavy-duty encryption and physical protection are necessary. follow link
Set Time Zone Automatically in Snow Leopard
Frequent travelers may be interested to know that in Snow Leopard your time zone can now be set automatically by bringing up the Date & Time preference pane, clicking the Time Zone view, and selecting Set Time Zone Automatically. A progress spinner appears while Snow Leopard sends off information about the Wi-Fi signals in your vicinity and receives location data back.
- ExtraBITS for 6 January 2014 (06 Jan 14)
Encryption Cracked by Listening to a Computer’s CPU