What is external DNS security? If the external DNS itself is the internet’s directory, then think of security as the gatekeeper, identifying and protecting visitors while keeping your premises safe. Essentially, it’s a way for your business to screen and validate visitors. It also assures your visitors that your website or online application is authentic.

External DNS cybersecurity protects both the company and its customers from a wide range of threats known to prey upon the DNS as it directs traffic.

Understanding DNS Security

There are two important aspects of ensuring DNS security: technical settings and management systems.

DNS security settings protect domains and users, ensuring privacy and route authentication. Most organizations employ SSL certificates on their domains to ensure visitors are protected from eavesdropping during their online sessions. Route authentication is a trickier matter.

When users attempt to connect to a website — a domain — without route authentication, it’s easy for your visitors to be sent to a falsified destination outside your control. Validating domains before routing to them prevents the kind of man-in-the-middle cyberattacks in which hackers “hijack” and impersonate authentic websites. Domain or DNS hijacking is on the rise with dire consequences for organizations and their users.

DNS Security Extensions (DNSSEC) can prevent threats like DNS cache poisoning and DNS hijacking. Our Apex-level DNS audit can test your DNSSEC deployment.

The other aspect of DNS network security is domain lifecycle management: the systems and processes that manage all the various entry points companies create into their network. A typical organization has hundreds — or even thousands — of domains and can have tens of thousands of DNS records, SSL certificates, and DNS security settings. A single error or omission on any one of these puts your network and customers at risk.

A common example is the case of the “orphaned domain.” Some online content, perhaps a marketing promotion, expires and the website is turned down, yet the DNS settings remain. Bad actors search out these unattended domain settings for appropriation and misuse.

Effective domain lifecycle management is just as important as security settings.

Why DNS Security Is an Important Issue

DNS security is important, especially as organizations extend their public internet presence to engage with audiences. Because consumer engagement is growing across an ever-expanding digital landscape, any breach in the internet chain of trust is unacceptable.

Consider organizations in healthcare or finance. If DNS security flaws compromise customers’ abilities to safely access their online bank accounts or confidential medical records, it could have catastrophic consequences.

Download our security and compliance checklist to find out what your organization is doing right and what is putting it at risk.

DNS security problems are more common than many will admit. In a recent incident, hackers appropriated thousands of orphaned domains belonging to hundreds of major brands including Mastercard, ING Bank, MIT, and Hilton International. Hackers manipulated DNS controls to launch spam email and fraud campaigns under the hijacked brand identities.

DNS security is vital because a single incident can have long-term and wide-ranging consequences. Failing to control DNS settings leaves companies vulnerable to fraud, theft, customer, and enterprise brand harm.

Making DNS Security an Ongoing Priority

While it’s crucial for all organizations to apply security and change management compliance controls to keep customers safe, very few do it effectively. To be fair, external DNS is incredibly hard to manage, especially without expert help. Even so, DNS security should be an ongoing organization-wide priority.

Most organizations are failing to adequately protect their external DNS. They use email, disconnected ticketing systems, Excel, and internal forms to manage dozens of DNS services, domain registrars, and SSL certificate providers. Best practice security standards like DNSSEC, DMARC (Domain-Based Message Authentication Reporting and Conformance), and SPF (Sender Policy Framework) are overlooked or improperly deployed.

If customers fall victim to cyberattacks stemming from your organization’s lax DNS management, their trust will be destroyed.

It’s increasingly difficult to tell whether a website or email is real or fake. Effective DNS management keeps customers safe: It ensures that an inherently vulnerable system is secure, authenticated, and trustworthy.

The best way to address DNS security is to start with visibility. A DNS security audit will identify missing security settings and management control gaps that expose your brand and customers to risk. Contact us at info@authenticweb.com for an audit that assesses your DNS security fitness.