What is the best way to store secrets?
You can store secrets in your source control (GitHub/Bitbucket/GitLab/..), CI/CD tool (GitHub Actions/CircleCI/Jenkins/..) or cloud (AWS Secret Manager/Azure Key Vault/GCP Secret Manager/..). You can even opt for third party key vaults like HashiCorp Vault but I am keeping them out of this discussion.
What is a secret vault?
Secret Vaults is designed to protect your confidential data against unauthorized access. A Secret Vault is a data storage on your computer that you can lock or unlock using the password that only you know.