Home / Blogs

Reducing the Risks of BYOD with DNS-Based Security Intelligence; Part 1: Understanding the Risks

Pat Barnes

Ah, BYOD. How I love thee.

BYOD, or "Bring Your Own Device", gives me choices. I can use a device at work I actually like and am most effective with. (How did I ever get by without my iPad?)

But BYOD comes with challenges. Personal devices can be infected with malware. Once they're connected to an enterprise's network, they can be controlled by a bot master to hijack enterprise resources and wreak havoc as part of a botnet. The biggest risk is data exfiltration which can have serious consequences: loss of valuable intellectual property, unauthorized disclosure of personal and confidential information, and more.

Having mentioned bot masters and botnets, here's a primer on what these terms are. Many cyber criminals employ bot networks, commonly known as "botnets", as the instrument of choice to implement their malicious activities. Bots are simply software that runs autonomously over the Internet. Devices can be infected with malware that operates as a "bot", autonomously exploiting the network to conduct malicious activities. A botnet is a collection of bots in the control of a cyber criminal (the "bot master"). Botnets are used by cyber criminals for a variety of malicious purposes. For example, they might rent their botnet to perform distributed denial of service (DDoS) attacks against websites or they're tasked with penetrating enterprise defenses and looking for valuable data. Bot masters control botnets by providing them with instructions that dictate the malicious activities the bot undertakes. Bots receive instructions by communicating with a server controlled by the bot master, known as command and control (C&C).

What can an enterprise do? Should BYOD be banned? Not without revolt, likely. In part two I'll discuss a DNS-based approach you can use to reduce the risks of allowing BYOD on your network.

By Pat Barnes, Product Manager of Security Solutions at Nominum

Related topics: DNS, Security

WEEKLY WRAP — Get CircleID's Weekly Summary Report by Email:

Comments

Way too short - you might put a bit more than just the teaser paragraphs in, next time. Suresh Ramasubramanian  –  Jan 22, 2013 8:14 PM PDT

That said, yes, DNS jails, device firewall policies etc (and metrics from those) are absolutely necessary for byod deployment.

To post comments, please login or create an account.

Related Blogs

Related News

Topics

Industry Updates – Sponsored Posts

Announcing Verisign IntelGraph: Unprecedented Context for Cybersecurity Intelligence

Introducing the Verisign DNS Firewall

TLD Security, Spec 11 and Business Implications

Verisign Named to the Online Trust Alliance's 2015 Honor Roll

3 Key Steps for SMBs to Protect Their Website and Critical Internet Services

Key Considerations for Selecting a Managed DNS Provider

Verisign Mitigates More DDoS Attacks in Q1 2015 than Any Quarter in 2014

Verisign OpenHybrid for Corero and Amazon Web Services Now Available

Afilias Supports the CrypTech Project - Ambitious Hardware Encryption Effort to Protect User Privacy

Public Sector Experiences Largest Increase in DDoS Attacks (Verisign's Q4 2014 DDoS Trends)

Help Ensure the Availability and Security of Your Enterprise DNS with Verisign Recursive DNS

Verisign iDefense 2015 Cyber-Threats and Trends

What's in Your Attack Surface?

Join Paul Vixie & Robert Edmonds at the Upcoming Distinguished Speaker Series

Q3 2014 DDoS Trends: Attacks Exceeding 10 Gbps on the Rise

LogicBoxes Announces Automation Solutions for ccTLD

3 Questions to Ask Your DNS Host About DDoS

Introducing Our Special Edition Managed DNS Service for Top-Level Domain Operators

Afilias Partners With Internet Society to Sponsor Deploy360 ION Conference Series Through 2016

Neustar to Build Multiple Tbps DDoS Mitigation Platform

Sponsored Topics