Hardening up: How does advanced AI impact cybersecurity?

How does advanced AI impact cybersecurity? This post was originally written for spaning, the student paper of the Swedish Defence University, in May 2026. It was written by Joar von Arndt and Tobias Wennberg, who is a cyber-soldier in the Swedish Armed Forces and an expert on logging. We are at war. There is currently a constant struggle between countless opposing forces to overcome the other’s defences. But this fighting is not immediately noticeable in the world around us — it is going on in the abstract world of digital communications called cyberspace. As more and more of our activities are impacted by what goes on in this domain of warfare, it becomes more and more of a target. The recent developments in artificial intelligence (ai) — and more specifically large language model (llm) — capabilities have had large headline impacts on the field of cybersecurity. Regardless of if Anthriopic’s Mythos has the capability to autonomously gain access to complex digital systems, it is…