An inventive new attack can extract passwords from computer fan activity, perfectly showing why the security war will always continue, and can never be won for good.
Here’s a security update to haunt your dreams, and to make the FBI’s quest for un-exploitable cryptographic backdoors look all the more absurd: a team of Israeli researchers has now shown that the sounds made by a computer’s fan can be analyzed to extract everything from usernames and passwords to full encryption keys. It’s not really a huge programming feat, as we’ll discuss below, but from a conceptual standpoint it shows how wily modern cyber attackers can be — and why the weakest link in any security system still involves the human element.
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