Explore the fundamentals of Vault, HashiCorp's powerful secret management tool, in this conference talk from GOTO London 2015. Learn how Vault secures, stores, and controls access to sensitive information such as tokens, passwords, certificates, and API keys in modern computing environments. Discover Vault's key features including leasing, key revocation, key rolling, and auditing capabilities. Gain insights into how Vault provides a unified API for accessing various types of secrets and enhances security in modern infrastructure. Presented by Seth Vargo, a polyglot software engineer and open source advocate at HashiCorp, this talk offers valuable knowledge for developers and system administrators looking to improve their secret management practices.