How a basic attack crippled Yahoo

The assault highlights a simple technique that can cripple a large, relatively well-prepared Internet company.

Lesson of the day: If they can shut down Yahoo, they can shut down anybody.
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The problem with Amazon Dash buttons

Limits on choice mean new shopping gadget won't click for everyone. Bridget Carey explains how the buttons work, and the rule changes for sharing your Prime perks with others.

by Bridget Carey