Building a stronger link

LinkedIn has improved security with the introduction of two-factor authentication. The move comes shortly after Twitter introduced similar tools after a surge in high-profile attacks on its users. The optional service requires users to enter numbers sent via text message. bit.ly/14afROT

LinkedIn has improved security with the introduction of two-factor authentication. The move comes shortly after Twitter introduced similar tools after a surge in high-profile attacks on its users. The optional service requires users to enter numbers sent via text message. bit.ly/14afROT

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