Cybersecurity Shifts from Prevention to Resilience at Zero Day Con 2026 in Dublin

At Zero Day Con 2026 in Dublin, the atmosphere of excitement around AI's cybersecurity potential was matched by a growing conviction that resilience is now the name of the game. Cyber threats have evolved into something faster, more adaptive and far more sophisticated than many organisations are prepared for. The battlefield is changing in real time. We need to move beyond the illusion of perfect prevention and embrace the reality of cyber resilience.
The primary theme echoing through the Dublin Royal Conference Centre was that Cybersecurity is no longer just about prevention – it's about resilience.
Zero Day Con 2026 reviewed and key trends
The event brought together leaders operating at the front line of cybersecurity, including representatives from the FBI, NCIS, Microsoft and EasyJet, alongside executive and board leaders, with support from leading cybersecurity vendors such as Smarttech247 and CrowdStrike. Rather than focusing purely on stopping attacks from happening, the conversation migrated towards what organisations do when attacks inevitably occur.
There was broad recognition that every organisation must now assume it will experience some form of cyber breach. Whether motivated by profit, ideology, disruption or geopolitical influence, what matters most is how organisations respond in the critical seconds and minutes immediately afterwards.
What struck me most throughout the day wasn't just the expertise of the speakers and panels, but the natural flow of the conversations themselves. Discussions moved from AI, to geopolitics, to leadership – in a way that felt reflective of the real world. Technology, geopolitics and people are no longer separate domains; they now exist within an interconnected ecosystem that demands collaborative thinking, resilient systems and adaptive leadership to deal with evolving threats to national, commercial and personal interests.
AI, Infrastructure and Geopolitics Are Converging
A dominant theme throughout the conference was the growing convergence of AI, infrastructure and geopolitics. AI is acting as a force multiplier, accelerating both cyberattacks and cyber defence capabilities simultaneously. Organisations are now operating in what increasingly feels like an AI-driven security race, where attackers and defenders are continuously adapting in real time. At times, it felt as though the line between science fiction and cybersecurity reality is beginning to blur.
Large-scale environments, from naval systems to global supply chains, are becoming increasingly digitised and as a result, increasingly exposed to cyber risk. One example discussed was the concept of the US Navy developing an AI-driven "central nervous system" capable of connecting naval operations, infrastructure and supply chains into a unified, seamless end-to-end monitoring and alert capability. While strategically powerful, such deeply interconnected systems also dramatically expand the attack surface, raising serious questions around resilience, dependency and risk management in highly digitised environments.
Another recurring theme was the increasing focus of nation-state actors on private organisations, not just governments. Attacks are no longer purely financially motivated; many are designed to disrupt operations, coerce influence, test capabilities or achieve strategic geopolitical objectives. The recent Stryker cyberattack in Cork was highlighted as an example of how these threats are becoming more visible at a local level.
The Threat Landscape Is Becoming More Human
While the technical narrative remained strong throughout the day, it was the human impact of cyber incidents that stirred my interest the most.
Joe Tidy, Cyber Correspondent with the BBC, shared the example of a Swedish cyberattack in which highly sensitive psychiatric patient records were stolen and used as leverage for ransom. It served as a stark reminder that cyber incidents are not abstract technical failures, rather they can become deeply pers...