We all know the scene. The movie heroine receives a string of menacing phone calls, and the tension escalates as the calls move from menacing to overtly threatening. She calls the police for help, and they trace the origin. Then comes the chilling revelation: the calls are coming from inside her own house.
This idea is widely recognised, yet many are surprised to learn that the majority of cybersecurity breaches in organisations stem from internal mistakes. A slight misconfiguration, an accidental click, or a simple misunderstanding of process. Though perhaps minor on their own, each mistake can open the door for attackers to cause significant harm.
The 2024 Verizon Data Breach Investigations Report found that 68% of breaches involve a non-malicious human element.
Another fact that surprises people is that while large organisations are often seen as the primary targets of cyberattacks, small and medium-sized businesses (SMBs) are also lucrative. Not only because they too have valuable data worth stealing, but often lack the strong security measures in place at larger enterprises.
The fact remains: we are human, we make mistakes, and we are frequently the weakest link in the cybersecurity chain. That’s why strong security measures are needed, regardless of an organisation’s size.
A target and a shield
Domain Name System (DNS) infrastructure plays a critical role as both a target for attackers and a key layer in securing network activity. As the system that translates domain names to IP addresses, it serves as the entry point exploited by cybercriminals to access an organisation’s network. So, when an employee accidentally clicks on a phishing link, DNS performs the lookup that connects to the malicious site. Once this connection is established, malware can be downloaded onto the target device, enabling remote control via command and control (C&C) infrastructure. This access allows attackers to exfiltrate data.
Today, most cybersecurity practices adopt a layered approach to defence. In doing so, DNS can be overlooked as just another security layer, but this is not the case. DNS is the most fundamental element of all network communications. It’s the foundation that underpins all network activity, making it the most critical aspect of any defence strategy.
The modern network landscape has evolved dramatically over the last five years. Networks now include billions of operational technology (OT) and Internet of Things (IoT) devices, each one a potential entry point for bad actors. Despite this complexity, they all share one common thread: they rely on IP addresses and DNS. This makes DNS a uniquely effective layer for securing not just traditional IT assets, but also the fast-growing OT and IoT devices attached to our networks.
Advanced DNS security, such as protective DNS (PDNS), offers visibility into domain activity and helps secure interactions between users and devices. Once deployed, it helps security teams identify patterns that may indicate potential threats, such as an employee accessing a malicious site or an attacker taking advantage of a configuration error.
Continuous monitoring can detect anomalies early, reducing the likelihood that human error will escalate into a serious incident. Automated checks and alerts can highlight vulnerabilities such as misconfigurations before they are exploited.
AI-enhanced tools can deepen DNS insights and improve efficiency. With predictive threat intelligence, advanced DNS solutions can block communication with malicious IPs before an attack takes place. This approach allows organisations to take preventative action, reducing the risk of malware infections or data exfiltration before vulnerabilities are exploited.
When paired with ongoing training on phishing, social engineering, and password management, DNS security becomes an effective tool to ease the burden on security teams and prevent attacks before they begin.
No need to break in when the door’s unlocked
The greatest threats to an organisation’s defences aren’t always external attacks. They often arise from internal vulnerabilities, typically unintentional but no less dangerous.
With a well-coordinated cybersecurity strategy that addresses the most fundamental layer of network communication, organisations can go beyond simply surviving cyber incidents, whether triggered from within or outside, and become truly prepared and resilient in the face of any attack.
