Encryption model & independent audits
How this is scored
What the vendor can prove about its security design: end-to-end encryption with named algorithms and key derivation, which fields are encrypted on the device and which are not, independent audits and penetration tests with published results, a bug bounty, and incident history disclosed.
0 — Vault contents are readable by the vendor by its own description: server-side encryption with keys the vendor holds, or no encryption of stored credentials.
3 — Client-side or end-to-end encryption described with the algorithms named; key derivation, audits and the scope of what is encrypted are basic or not described.
5 — A published security whitepaper or security page naming algorithms, key derivation and the client-side encryption model, and an independent audit, penetration test or certification (ISO 27001, SOC 2) named.
8 — A stated list of which fields are and are not encrypted (including URLs and metadata), recurring independent penetration tests or code audits with dates and reports or summaries published, a public bug bounty or vulnerability disclosure policy, past security incidents documented with their impact, and open-source clients or cryptography that can be reviewed.
10 — The design is verifiable end to end: full source or cryptographic design public, every field encrypted client-side including metadata, audits by named firms repeated yearly with full reports, a threat model that states what a compromise of the vendor's servers would expose, and incident post-mortems published.
The DevOps Engineer
The security pages show a real vulnerability-disclosure programme — a bug bounty hosted on YesWeHack with published rewards up to $5,000 for critical issues, CVSS 3.1 scoring, researcher credit, and public advisories with CVEs and fix versions stretching back over at least twelve pages. The encryption story itself is thin, though: the self-hosted server generates encryption keys at initialization, and we found no public information naming the algorithms, the key derivation, which fields are encrypted, or any independent audit or certification. 4 5 13