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Tumblr hack

How to recover from a Tumblr hack

The Yahoo microblogging service acknowledges that millions of its users’ account credentials have been compromised in recent years. Here’s how to regain control of and further secure yours.

Inside the malware name game

From publicity and hacker humiliation to machine-learning algorithms and taxonomy, we outline the factors leading to names such as Melissa, Stuxnet, Nimda, and Code Red.