Infrastructure responsibility is the security principle that protection must be built into the system itself, not placed only on end users. In cyber security, that means platforms, products, and workflows should include guardrails such as abuse reporting, default privacy settings, content moderation, rate limits, logging, and rapid takedown processes. The goal is to reduce harm even when users make mistakes or attackers try to misuse a service.
This matters because many modern attacks do not rely on breaking encryption or exploiting code. They exploit ordinary features designed for convenience, such as photo upload, sharing, and editing. In nudify abuse, for example, a service can become part of the harm chain if it lets someone transform a person’s image without consent. Infrastructure responsibility shifts defense to the places where misuse can be prevented, detected, and removed quickly, making safety a design requirement rather than an optional warning.