Domain Solution · Zero Trust & Exposure Reduction
How do we prevent overexposure of sensitive data to engineers, support teams, vendors, and third parties?
CipherStash enforces access policies at decryption time — after the query and after the API response. Engineers, support staff, vendors, and third-party tools see ciphertext unless their identity is explicitly authorised for that field, and every decryption is recorded.
Refined Question
Far more people and systems can read customer data than actually need to: engineers debugging production, support staff with broad consoles, vendors with API access. How do we cut that exposure without breaking the workflows those people depend on?
Why This Matters
Overexposure is the quiet default of most stacks — access accumulates, reviews lag, and "can read everything" becomes normal. Every unnecessary reader is an insider-risk, phishing, and vendor-breach liability, and regulators increasingly treat overexposure itself as a finding.
Why CipherStash
CipherStash separates being able to query data from being able to read it. Fields stay encrypted through queries, APIs, and tools; decryption happens per value, only for identities a policy authorises, and lands in an audit trail.
This allows:
- Engineers to debug against production with sensitive fields still encrypted
- Support tooling to reveal only the fields a case actually requires
- Vendors and third parties to integrate without inheriting plaintext access
- Access reviews to be grounded in actual decryption records
Key Differentiators
- Identity-aware decryption — every decryption is bound to the identity behind the request
- Cryptographic auditability — a verifiable record of who decrypted what, and when
- Application-layer encryption — data is protected before it reaches the database
- Searchable encryption — equality, range, and free-text queries over encrypted Postgres fields, with standard indexes
- No re-platforming — works over the Postgres you already run
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