Almost five million Gmail accounts were compromised on Tuesday and the details of those accounts posted online, Google has responded by saying their servers were not breached, indicating brute-force.
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Under Yahoo, Tumblr has become the latest web-based service to offer two factor authentication for logins in order to provide additional security to users and counter unsolicited login attempts.
Microsoft has added a number of new features to the desktop version of Lync 2013, including the long awaited introduction of two-factor authentication to the business chat application.
Mega founder Kim Dotcom claims he holds the patent for two-factor authentication and says he may sue other companies that are using it, like Microsoft, Twitter, Facebook and more.
Twitter has announced it has started rolling out its new two-factor authentication option to help protect accounts for its users, which includes sending a SMS message to a phone to confirm logins.
Twitter is reportedly testing an optional two-factor authentication method for its accounts, although it's currently unknown when the option will be made available to the public.