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3rd DDoS attack on internet under way, Dyn alerts customers

Dyn, the internet performance management company, is warning its customers that for the third time on Friday a distributed denial of service (DDoS) attack is under way.

For much of Friday, many internet users, mostly on the US East Coast, have suffered through downed internet service. Amazon, Netflix, PayPal, Reddit, Spotify and Twitter were among the more prominent sites affected, as were many major mainstream news sources.

Dyn DNS Company described the attacks as “well planned and executed, coming from tens of millions of IP addresses at the same time,” in a statement to CNBC.

The Department of Homeland Security is reportedly investigating who is behind the DDoS attack, a popular disruptive tactic whereby a website or service is taken down by manufactured high traffic from a distribution of sources. The White House called it a “criminal act,” according to Reuters.

“We have begun monitoring and mitigating a DDoS attack against our Dyn Managed (Domain Name System) infrastructure. Our Engineers are continuing to work on mitigating this issue,” Dyn said on its website just before noon Eastern Time. The first attack came hours earlier, around 7:00am.