The Wall Street Journal: Friday’s internet attack method evolved from disgruntled gamers

The computerized attack that left more than 1,200 websites unreachable on Friday stemmed from efforts, years earlier, by players of online games to frustrate and slow their opponents, security experts say.

The massive denial-of-service attack was launched from thousands of internet-connected devices, including cameras, video recorders and routers. It overwhelmed computer servers at Dynamic Network Services Inc., also known as Dyn, which plays a crucial role in connecting users to websites. Popular sites including Twitter Inc. TWTR, +7.04% and Netflix Inc. NFLX, +3.36% were unreachable for parts of Friday.

On Saturday, Dyn said the attack had ended, though it continued to investigate the causes.

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