CSC Wins DNS Security Innovation Award
Wilmington-based CSC received a 2026 Cyber Defense Magazine distinction for its Subdomain Monitoring technology.
Updated on Nov. 9, 2026 in Cybersecurity

CSC received the Most Innovative DNS Security distinction in Cyber Defense Magazine's 2026 Top InfoSec Innovator Awards. The recognition follows an analysis of nearly 500,000 DNS records that identified corporate exposure to subdomain takeover vulnerabilities.
Why it matters
Dangling DNS records can remain after the resources they point to are removed, allowing attackers to take control of a subdomain tied to a legitimate corporate website. The award highlights growing industry attention to this overlooked class of risk for Wilmington-area businesses and enterprises alike.
CSC's Subdomain Monitoring, operating through its DomainSec threat intelligence platform, analyzed nearly 500,000 DNS records to identify subdomain takeover exposure. The extraction does not report how many records were flagged as vulnerable or the detection rate of the tool.
The players
CSC
CSC is a Wilmington-based provider of enterprise domain registration, brand protection and cybersecurity services.
Mark Flegg
Mark Flegg is CSC's senior director of technology for Security Services and commented on the rise of AI and dangling DNS records.
The details
Subdomain Monitoring alerts administrators and security engineers when DNS zone records change and integrates with DomainSec's enforcement and takedown capabilities. The technology is designed to help organizations identify outdated DNS configurations and remove records that are no longer needed.
Timeline
2026: CSC receives Cyber Defense Magazine's DNS security innovation award.
The Tech Race
The award places CSC's DomainSec Subdomain Monitoring within a competitive field of DNS security tools that address dangling records, a risk category that has drawn increasing industry scrutiny. The recognition positions CSC against rivals offering domain takeover detection as enterprises seek to close gaps in domain hygiene.
Organizations that maintain legacy DNS records face the risk of subdomain takeover if those records point to deleted resources. Reviewing DNS zone records for outdated entries is a practical step for IT teams managing corporate domains.
The takeaway
Dangling DNS records are easy to overlook but can expose legitimate corporate domains to attackers. Regularly auditing DNS zones for records tied to decommissioned resources reduces that exposure.
Further reading
For more on the security risks behind this award, explore Cybersecurity coverage on Wisevoter.
Source note: This article includes information reported by MyChesCo.










