Compute is the processing capacity that a system can use to perform work, usually delivered by CPUs, GPUs, specialized AI chips, servers, and cloud instances. In AI, compute is the fuel for training large models and for running them at scale during inference.
It matters in cybersecurity because compute is both a resource and a control point. Attackers may abuse stolen cloud access, rented GPU time, or compromised servers to train harmful models, generate phishing content, crack passwords, or automate reconnaissance. Defenders look at compute usage to spot abuse, enforce quotas, isolate workloads, and verify who can access high-end chips or cloud capacity. In sensitive environments, controlling compute is part of controlling the attack surface.