Introduction# Vault is a secret management tool developed by Hashicorp. It allows for secure storage and management of secrets. In this article, we will see how to use Vault to manage your application’s secrets. Vault was released in 2015 and has become an essential tool for secret management. It is used by many companies for its flexibility and security. Its scope is wide, it can be used to store secrets, certificates, SSH keys, API tokens, etc.