Hyperscalers are very large cloud providers that run global, highly automated infrastructure for compute, storage, networking, and managed services. In practice, they support huge numbers of tenants and are often the default platform for enterprises and governments because they offer scale, redundancy, and advanced security tooling.
In cyber security, hyperscalers matter because they shape both the attack surface and the defensive model. A compromise of identity, API keys, misconfigured storage, or cloud permissions can expose many workloads at once. At the same time, these platforms provide defenses such as centralized logging, encryption, key management, segmentation, and rapid patching. They also raise governance issues: customers may face foreign legal exposure, lock-in, and complex exit planning even when data is hosted locally. That is why security teams evaluate hyperscalers not only by price and performance, but by control, portability, and who can access the service under law.