HashiCorp Vault is a comprehensive data protection solution that offers various methods to protect sensitive information, including encryption, data masking, and tokenization. Each method has its tradeoffs and is suited for specific use cases. Data masking is ideal for situations where reversibility is not essential, while traditional encryption provides the ability to restore ciphertext to its original plaintext. Format-preserving encryption (FPE) adapts to accommodate structured data stores, and tokenization replaces sensitive information with a randomly generated token. The choice of method depends on the specific needs of the business, including whether the data needs to be reversible, its format preserved, or encrypted. HashiCorp Vault's feature matrix can help identify the right method for each use case, allowing businesses to increase the usability and performance of their data protection workflow.