+4.15 Minimisation of default services

4.15 Minimisation of default services

Principle (secure by default)	Disable non-essential features and services by default. Only the functionality required for the core operation of the product should be enabled by default.
Objective	Reduce the attack surface and ensure that products start in a hardened state, without relying on users to disable specific functionality.

Checklist

Define core functionality	Identify the minimum set of features and services required for the product to operate.
Disable non-essential features and services by default	Ensure that optional features and services are disabled by default.
Require explicit opt-in for additional functionality	Ensure that non-essential features and services can be enabled only through deliberate user action.
Explain security implications on enablement	Inform users of security risks when enabling optional features and services. Avoid enabling additional features and services without clear acknowledgement.
Review defaults on change	Reassess default-enabled features and services when new features are introduced.

Minimum evidence

Core features and services defined: documentation or configuration identifying which features and services are required by default.
Non-essential features and services disabled: default configuration or build artefacts show optional features and services and modules are off.
Explicit opt-in required: configuration or documentation shows how additional features and services must be manually enabled.
Security implications disclosed: documentation, UI text or configuration prompts show that users are informed of security implications when enabling non-essential features and services.
Defaults reviewed for this release: release notes, checklist or ticket confirms that default settings have been reviewed after changes.

Release gate

Only core functionality is enabled by default
Optional features and services are disabled unless explicitly enabled by the user
Users are informed of security implications when enabling non-essential features and services
No new features or services are enabled by default without review
Default configuration has been reviewed and confirmed for this release

1. Panoramica

Titolo	Standard

Requisiti
Fonte	Requisito

Regolamentazioni
Fonte	Regolamentazione

ENISA -
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