Don't-Miss Stories

Report: NSA secretly exploited devastating Heartbleed bug for years (Update: NSA denies)

News of the Heartbleed bug has brought the Web to its knees, and Bloomberg says the NSA has been exploiting it for at least two years.

on pcworld.com

heartbleed bug

Healing Heartbleed: LastPass offers automated checker, major sites admit vulnerability

As the list of major sites hit by Heartbleed grows, LastPass is helping its users figure out which accounts need password changes.

on pcworld.com

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Scam Virus Shield app tops Google Play's paid app charts before being yanked

Google recently pulled a $4 security app from Google Play that bilked thousands of users before it was finally found out.

on greenbot.com

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"Off the grid" messaging service FireChat launches on Android

Keep your conversations hidden by directly connecting to your friends, without utilizing a Wi-Fi or cellular connection.

on greenbot.com

Bitcoin and other currency

Bitcoin wallet service Coinbase denies security breach as user names appear online

A list of names circulating on the Internet represents only a small fraction of Coinbase users, according to the Bitcoin wallet service

Hacked passwords can enable remote unlocking, tracking of Tesla cars

Tesla Motors accounts that enable remote car control are only protected by six-character passwords, researcher says.

Report: Smartphone kill-switch could save consumers $2.6 billion per year

A survey from a Creighton University professor finds almost all consumers want the ability to remotely kill a stolen cellphone.

bitcoin

'Malleability' attacks not to blame for Mt. Gox's missing bitcoins, study says

A study by Swiss researchers concludes that transaction malleability attacks could not have accounted for Mt. Gox's missing millions

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How to use Tumblr's new two-factor authentication

Tumblr joins a large number of online services that are making it harder for hackers to break into your account thanks to two-factor authentication.

facebook

End-to-end encryption needs to be easier for users before Facebook embraces it

Facebook cites third-party services for users seeking end-to-end encryption

on pcworld.com