Most applications use third-party services. Access to those services is possible thought some secrets and keys. Lets store those secrets in a Vault instead of hardcoding them in our software. Vault is a free product made by HashiCorp that makes it easy to store, read and share your secrets with other members of your team and machines. It stores already encrypted data, it has many different ways to authenticate, including Github, and on top of it all, it logs everything.