Zero-Knowledge Architecture

Your sanctuary is cryptographically untouchable

Your thoughts are encrypted on your personal device before they ever touch the network. We cannot read your entries, and no one else can either.

End-to-end AES-256 encryption

Every reflection, audio recording, and insight is encrypted locally on your device before touching the network. In transit and at rest, your words stay locked.

Client-enforcedProtocol v2.4
Sole key ownership

Encryption keys are derived exclusively from your credentials and stored securely on your hardware. DIARYAI engineers and third parties possess zero decryption capabilities.

Client-enforcedProtocol v2.4
Zero model training policy

Your private thoughts, sentiment trends, and habits are never indexed, analyzed for targeted advertising, or fed into public machine learning algorithms.

Client-enforcedProtocol v2.4
Real-Time Security Verification
Client-side SHA-256 hashing
SOC2 Type II aligned architecture
Zero-data retention pipelines
Zero-Knowledge Architecture

Your reflections stay truly private.

Client-side encryption transforms every word before it leaves your device, so not even our systems can read your thoughts.

Verified

ISO-27001

Information security management

Strict controls govern data integrity, disaster resilience, and zero unauthorized access.

SOC 2 Type II alignedVerified
Active

GDPR Compliance

Privacy by design

Full European data sovereignty with one-click export and complete right-to-be-forgotten erasure.

EU-US DPF certifiedVerified
Enforced

CCPA & CPRA

Consumer data protection

Zero data selling or external advertising broker sharing. Your journal entries remain entirely yours.

Zero telemetry sharingVerified
Passed 2025

Third-Party Audits

Annual penetration testing

Independent white-hat offensive security firms audit our zero-knowledge codebase every quarter.

Public report availableVerified
Need proof of compliance for your team or personal record?Request security whitepaper