AT&T Hack Attack Cut Off Service For Customers

Hackers Take Down AT&T Service For Some
FILE - In this Oct. 19, 2009 file photo, the AT&T logo is on display at a RadioShack store in Gloucester, Mass. AT&T Inc. will start selling home automation and security services nationwide, taking on incumbents led by Tyco International Ltd.s ADT. The installations and services will be sold in AT&T stores, starting with a trial this summer in Dallas and Atlanta. (AP Photo/Lisa Poole, File)
FILE - In this Oct. 19, 2009 file photo, the AT&T logo is on display at a RadioShack store in Gloucester, Mass. AT&T Inc. will start selling home automation and security services nationwide, taking on incumbents led by Tyco International Ltd.s ADT. The installations and services will be sold in AT&T stores, starting with a trial this summer in Dallas and Atlanta. (AP Photo/Lisa Poole, File)

(Reuters) - AT&T Inc said some business customers temporarily lost internet access because its network was targeted by unknown attackers on Wednesday.

Company spokesman Mark Siegel said that domain name system, or DNS, servers that direct traffic for AT&T customers were targeted at two locations by a distributed denial of service attack.

In such attacks perpetrators target a server with a lot of requests at the same time, making it unavailable to users.

The issue has now been resolved, he said.

(Reporting by Siddharth Cavale in Bangalore)

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