Tor Adopts a Proof-of-Work Defense to Protect Against DDoS Attacks

Tor, the routing service that stresses anonymity and for almost a year was under a distributed denial-of-service (DDoS) attack, is introducing a new line of defense with the latest release of its software. Included in Tor 0.4.8, released this month is a proof-of-work (PoW) defense that is used to allow verified network traffic to flow..

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