generated: '2026-07-18' method: searched source: https://certifaction.com/security-esigning-and-data/ url: https://certifaction.com/security-esigning-and-data/ certifications: - ISO/IEC 27001:2022 - eIDAS - ZertES - GDPR - revFADP - UETA - ESIGN highlights: - Zero Document Knowledge — documents are processed locally and end-to-end encrypted; Certifaction never sees content. - Data residency in the EU, Switzerland, or on-premises. - Hosted on ISO 27001 certified data centres (Azure Switzerland North). evidence: - source: https://certifaction.com/security-esigning-and-data/ keywords: [iso 27001, eidas, zertes, gdpr, zero document knowledge, data residency] notes: >- Certifaction publishes its security posture and named certifications on its security page. No dedicated trust. portal, bug-bounty, or published responsible-disclosure policy was found.