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DNS Attacks on the Rise

Infoblox's vice president of technology says operators need to fortify the DNS as attacks increase in number and sophistication.

Sarah Thomas

December 6, 2013

1 Min Read
DNS Attacks on the Rise

NEW YORK -- Mobile Network Security Strategies -- Attacks against the domain name system (DNS) have risen in the past year, and they have grown more sophisticated and targeted in the process.

Dr. Srinivas Mantripragada, vice president of technology at the network security vendor Infoblox Inc. , said the attacks are taking on two forms: outside-in to disrupt the DNS service, as in a denial of service (DOS) attack; and inside-out, using the DNS as a vector to exploit for spam, botnets, or phishing. (See: Infoblox Intros DNS Appliance.)

The attacks can take 10 hours or more to resolve, cost hundreds of thousands of dollars, and damage the brand -- something GoDaddy, Spamhaus, and Twitter have experienced in the past year or so.

Seeing that virtually every service that network operators provision has a DNS component to it, it's easy to see why they are concerned, too. "DNS is the No. 2 attack vector, right next to HTTP," Mantripragada said. "It's growing 200% year over year. It's an important pillar that needs to be fortified more."

— Sarah Reedy, Senior Editor, Light Reading

About the Author(s)

Sarah Thomas

Director, Women in Comms

Sarah Thomas's love affair with communications began in 2003 when she bought her first cellphone, a pink RAZR, which she duly "bedazzled" with the help of superglue and her dad.

She joined the editorial staff at Light Reading in 2010 and has been covering mobile technologies ever since. Sarah got her start covering telecom in 2007 at Telephony, later Connected Planet, may it rest in peace. Her non-telecom work experience includes a brief foray into public relations at Fleishman-Hillard (her cussin' upset the clients) and a hodge-podge of internships, including spells at Ingram's (Kansas City's business magazine), American Spa magazine (where she was Chief Hot-Tub Correspondent), and the tweens' quiz bible, QuizFest, in NYC.

As Editorial Operations Director, a role she took on in January 2015, Sarah is responsible for the day-to-day management of the non-news content elements on Light Reading.

Sarah received her Bachelor's in Journalism from the University of Missouri-Columbia. She lives in Chicago with her 3DTV, her iPad and a drawer full of smartphone cords.

Away from the world of telecom journalism, Sarah likes to dabble in monster truck racing, becoming part of Team Bigfoot in 2009.

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