Tuta, operated by Tutao GmbH in Hanover, is the world’s first fully encrypted and quantum-secure service for email, calendars, contacts, and file storage. The platform was developed to offer businesses and government agencies maximum data security and digital sovereignty.

Thanks to quantum-secure cryptography, a zero-access architecture, open source code, two-factor authentication, and outstanding protection against spam and phishing, Tuta safeguards sensitive business data from all threats. All data is hosted and processed exclusively in Germany. Sustainability is also a central component of the company’s philosophy: In 2025, Tuta generated less than 1 gram of CO₂ per user.

With one-click migration and full GDPR compliance, Tuta enables government agencies and busin ...