From ComputerWorld: Yahoo last week followed the lead of rivals Facebook and Google by telling users it would warn them when it believes they are in the crosshairs of state-backed cyber attackers.
"Yahoo will now notify you if we strongly suspect that your account may have been targeted by a state-sponsored actor. We'll provide these specific notifications so that our users can take appropriate measures to protect their accounts and devices in light of these sophisticated attacks," wrote Bob Lord, Yahoo's chief information officer, in a Dec. 21 post to a company blog.
Google instituted a similar warning to users of its Gmail email service in mid-2012; Facebook followed suit two months ago.
Like Google and Facebook, Yahoo declined to go into specifics about how it separates the state-sponsored wheat from the run-of-the-mill hacker chaff, and used the same reasoning for not revealing its techniques -- essentially telling users of its Yahoo Mail to trust the company. "In order to prevent the actors from learning our detection methods, we do not share any details publicly about these attacks," said Lord. "However, rest assured we only send these notifications of suspected attacks by state-sponsored actors when we have a high degree of confidence."
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