Jeh Johnson, secretary of the Department of Homeland Security, has said U.S. officials think the distributed denial of service attack against internet performance management company Dyn has been addressed, Nextgov reported Monday.
Johnson said DHS held a conference call with 18 communication services providers the day the cyber attack affected websites such as Twitter and Netflix, Joseph Marks wrote.
The DHS secretary verified predictions of security experts that attackers used a type of malware called Mirai to carry out the attack, the report stated.
Mirai uses malware from phishing emails to target computer or home networks then spread the virus to multiple devices to create a robot network.
Johnson noted DHS’ National Cybersecurity Communications and Integration Center works with law enforcement and private sector entities to fight the malware, Marks reported.
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