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Zero-day attacks pose significant risks to organisations due to their unpredictability. We spoke with Dominik Birgelen, CEO of oneclick AG, to dive deep into zero-day attacks. From understanding what a zero-day attack is to navigating its risks and how companies can protect themselves, Dominik shares insights on the topic.
What is a zero-day exploit?
A zero-day exploit refers to a cyberattack exploiting a security vulnerability within computer software, hardware, or firmware which is unknown to a vendor or developer. The term “zero-day” indicates that the software or device vendor has no window to rectify the flaw, as malicious actors can promptly utilise it to breach vulnerable systems. Attackers are often on the lookout for these zero-day vulnerabilities before the vendor releases a fix or patch.
There are a number of reasons behind zero-day exploits such as malicious intent, financial gains, hacktivism, geopolitical conflicts, and more. However, there may be a combination of factors.
How much risk do zero-day exploits pose to business?
Zero-day exploits pose significant threats as they can result in cyberattacks, data breaches, malware distribution, and system manipulation. There are no patches or fixes available to mitigate the vulnerability when it occurs. As a result, companies are unable to completely protect themselves from these attacks.
Since zero-day exploits leverage previously unknown vulnerabilities, hackers are easily able to evade detection by traditional security measures such as antivirus software, intrusion detection systems (IDS), and other security systems. These exploits make it difficult for businesses to respond in a timely manner as they are unpredictable, exacerbating the impact of a cyberattack. Only a single vulnerability can impact thousands or even millions of users, amplifying the scale of the attack. From financial loss and regulatory penalties to reputational damage and disruption in operations, zero-day exploits can have devastating consequences for companies.
Which devices and software are typically at risk from zero-day exploits/which are the most targeted by attackers?
While zero-day exploits can impact numerous devices and software, attackers tend to focus on those with widespread adoption, substantial significance, and critical functionalities. This includes operating systems, web browsers, productivity software, web servers, IoT devices, development tools, critical infrastructure systems, and more, which are frequently targeted by malicious actors.
How to spot attacks utilising zero-day exploits?
To spot zero-day exploitation effectively, businesses need to have robust intrusion detection systems in place and ensure timely management of software patches. Companies can also provide their staff with appropriate training on an ongoing basis to help them recognise suspicious activities and potential zero-day threats.
Once an attack is identified, companies must swiftly identify and isolate compromised systems to prevent potential spread. While permanent vulnerability fixes may require time, organisations must ensure that they implement temporary workarounds to minimise consequences.
What can be done to protect your business?
To prevent themselves from zero-day exploits, businesses can turn to innovative cybersecurity solutions that are built on the foundation of zero-trust security frameworks. It is also critical to establish clear policies and procedures for managing endpoints in both on-premises and cloud environments to ensure consistency and security across the network.
As speed is of the essence in zero-day exploits, organisations can harness the power of virtual desktop solutions which enable the fastest response. They allow centralised management and deployment of patches and updates not only for virtual desktops but also for other cloud-based resources. Cloud solutions, including virtual desktop infrastructure (VDI), offer agility, allowing organisations to rapidly adapt to changing security requirements and deploy updates across all levels.
Businesses can add an extra layer of security through virtual desktops by minimising data exposure on end-user devices which is made possible by relying on streaming applications or desktop sessions instead of storing data locally. This also allows them to facilitate real-time updates and patches without requiring extensive downtime or disrupting user productivity.
