Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Attacks/Breaches

DNS Firewalls Could Prevent Billions in Losses to Cybercrime

New analysis shows widespread DNS protection could save organizations as much as $200 billion in losses every year.

DNS protection could prevent approximately one-third of the total losses due to cybercrime – which translates into billions of dollars potentially saved.

According to "The Economic Value of DNS Security," a new report published by the Global Cyber Alliance (GCA), DNS firewalls could annually prevent between $19 billion and $37 billion in losses in the US and between $150 billion and $200 billion in losses globally. GCA used data about cybercrime losses from the Council of Economic Advisors and the Center for Strategic and Internation Studies as the basis for its GCA's estimates of how much DNS protection, such as a DNS firewall, could save the economy.

"The benefit from using a DNS firewall or protective DNS so exceeds the cost that it's something everyone should look at," says Philip Reitinger, GCA president and CEO. In many cases, he says, the DNS protection service or DNS firewall will be available at no cost to purchase or license.

But could any cost, no matter how small, be offset by the difficulty in deploying or managing the protection? Not likely. "In most cases, it will be extremely easy to do. There's no new software here," Reitinger says. When it comes to protecting endpoints, it could be as simple as changing the address used for DNS resolution in the computer's network settings. And for some companies, the adoption will be only slightly more difficult.

The only real difficulty, Reitinger says, comes if the firewall begins generating false-positives, blocking traffic to destinations that serve a legitimate business purpose. Should that happen, firewall rules will need to be manually overridden. "If you see people trying to going out to various services, you get to write the rules that allow or block the destination in spite of the firewall," he says.

One legitimate point of concern is the data on DNS traffic that the protection provider might collect, Reitinger adds. Knowing about an organization's traffic patterns provides a great deal of information about the organization itself, he says. In this case, asking serious questions of the provider before signing a contract or changing a resolution server address can prevent privacy concerns in the future.

Related Content:

Curtis Franklin Jr. is Senior Editor at Dark Reading. In this role he focuses on product and technology coverage for the publication. In addition he works on audio and video programming for Dark Reading and contributes to activities at Interop ITX, Black Hat, INsecurity, and ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Threaded  |  Newest First  |  Oldest First
gsidman
50%
50%
gsidman,
User Rank: Apprentice
6/14/2019 | 1:17:23 PM
The DNS is the Typhoid Mary of the Internet
Firewalling DNS calls gets half way to solving the major problems with the DNS.  While doing so is a good first step, it does not cure the main exposure the DNS provides to the bad guys. The next step is to move the DNS into an encrypted policy engine where sources are verified before routing is even allowed. In the medical, industrial and other dedicated IoT spaces, the IP addresses are dedicated and persistent, making the DNS an unecessary and dangerous component of routing. While the DNS may always be with us for the public side of the Internet (email, the web, social media, etc.), its use on the commercial and industrial side is no longer viable.  The sooner we elevate the discussion around the wisdom of not using the DNS in the wrong places, the sooner we will get to a more secure Internet.
sgreene02101
50%
50%
sgreene02101,
User Rank: Apprentice
6/17/2019 | 9:52:50 AM
Re: The DNS is the Typhoid Mary of the Internet
Strongly agree with above post by Gsidman. I would like to echo the author's sentiments - the hardware and labor cost inputs required to implement a simple but effective system are so vastly outweighed by the benefits. Seems to me that that vast majority of intrusions/theft/ransom/dos attacks as well as infrastructure vulnerabilities could be eliminated by such a simple fix. Neither hard nor expensive (relatively speaking) and should be number 1 or 2 on the top of every IT, facility or municipality manager's list.
JensJensen457
100%
0%
JensJensen457,
User Rank: Apprentice
6/18/2019 | 4:46:37 AM
Setting up a DNS Firewall
Does anyone know how to set up a DNS Firewall on my own website?
martinchristensen576
100%
0%
martinchristensen576,
User Rank: Apprentice
6/18/2019 | 4:59:42 AM
Re: Pending Review
I would really like to know as well! Seems to be a good idea to get a DNS Firewall!
Data Privacy Protections for the Most Vulnerable -- Children
Dimitri Sirota, Founder & CEO of BigID,  10/17/2019
Sodinokibi Ransomware: Where Attackers' Money Goes
Kelly Sheridan, Staff Editor, Dark Reading,  10/15/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
7 Threats & Disruptive Forces Changing the Face of Cybersecurity
This Dark Reading Tech Digest gives an in-depth look at the biggest emerging threats and disruptive forces that are changing the face of cybersecurity today.
Flash Poll
2019 Online Malware and Threats
2019 Online Malware and Threats
As cyberattacks become more frequent and more sophisticated, enterprise security teams are under unprecedented pressure to respond. Is your organization ready?
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-18214
PUBLISHED: 2019-10-19
The Video_Converter app 0.1.0 for Nextcloud allows denial of service (CPU and memory consumption) via multiple concurrent conversions because many FFmpeg processes may be running at once. (The workload is not queued for serial execution.)
CVE-2019-18202
PUBLISHED: 2019-10-19
Information Disclosure is possible on WAGO Series PFC100 and PFC200 devices before FW12 due to improper access control. A remote attacker can check for the existence of paths and file names via crafted HTTP requests.
CVE-2019-18209
PUBLISHED: 2019-10-19
templates/pad.html in Etherpad-Lite 1.7.5 has XSS when the browser does not encode the path of the URL, as demonstrated by Internet Explorer.
CVE-2019-18198
PUBLISHED: 2019-10-18
In the Linux kernel before 5.3.4, a reference count usage error in the fib6_rule_suppress() function in the fib6 suppression feature of net/ipv6/fib6_rules.c, when handling the FIB_LOOKUP_NOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753.
CVE-2019-18197
PUBLISHED: 2019-10-18
In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclo...