As 2025 draws to a close and some organizations slip into a quieter holiday rhythm, their AI systems continue humming in the background—summarizing customer inquiries, triaging security alerts, generating code, and synchronizing records across critical systems. Within that uninterrupted activity, however, lies a less festive truth: agentic AI introduces cyber risks of unprecedented complexity and novelty, beyond what conventional architectures were designed to manage.

Agentic AI—the class of systems that can reason, plan, act, and adapt toward goals with reduced human oversight—promises measurable gains across legal services, finance, healthcare, and supply chain operations. But the same autonomy that drives new efficiencies also creates a distinctly complex cybersecurity risk profile. By initiating actions, calling tools, exchanging data with other agents, and escalating privileges to meet objectives, autonomous systems expand the attack surface and introduce “digital insiders” that can err at scale, leak data silently, and even be co-opted by threat actors. For those advising on governance, cyber preparedness, and emerging-tech strategy, the takeaway is clear: companies need a practical, defensible program tailored to agentic environments—one that reduces the likelihood and blast radius of failures before a single misaligned step turns out all the lights.