PayPal Outages Persist, Worry Users

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Sporadic outages at PayPal stretched into a fifth day on Tuesday, though the company late in the day reported that access had returned to normal for most users. Even as access appeared to be improving,...

Experts Worry About Tech Retaliation

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In war, politics and sports, it's often said that the best defense is a strong offense. But the foot soldiers of computer security work differently: They scramble to build virtual walls that can blunt the...

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