> For the complete documentation index, see [llms.txt](https://docs.ont.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ont.io/decentralized-identity-and-data/ontid/ont-login/scenarios.md).

# Scenarios

Systems ranging from traditional networks to decentralized ecosystems including public chains and alliance chains can be empowered by ONT Login to achieve passwordless authentication. 

Businesses with below scenarios can especially benefit from the convenience and security: 

* Services targeting privacy-sensitive users
* Services targeting web 3.0 users
* Systems tired of password management
* Services with KYC requirements