Both Microsoft OneDrive and Google Drive implement robust, enterprise-grade security protocols, including AES-256 encryption at rest and TLS/SSL encryption in transit, making both platforms exceptionally safe for everyday cloud storage. Microsoft OneDrive often appeals to corporate environments utilizing strict Windows integration and advanced Personal Vault biometric controls, while Google Drive offers seamless multi-factor authentication integration and powerful automated threat detection. Neither service provides default end-to-end zero-knowledge encryption out of the box without third-party tools, meaning security levels are largely comparable depending on user configuration.