SECURITY

Security is the architecture, not a layer.

At Hypereum, security is not a feature added after the fact. It is the design principle that governs every system we build.

AUDIT TRAIL

Hash-chained decision history

Every event in Hivemind is cryptographically linked to the previous one using SHA-256 hash chains with HMAC integrity verification. It is impossible to alter the history without breaking the chain. The audit trail is verifiable at any moment and replayable in dry mode — same mission, same conditions, same trace.

This means that when a regulator asks "what did the AI do and why," there is a complete, tamper-evident, cryptographically verifiable answer.

DEMONSTRATION

Hash chain integrity

See what happens when a record is modified after the fact.

#1
a7f3b2...c4
Valid
#2
e8d1f4...b7
Valid
#3
c3a9e1...f2
Valid
#4
f7b2d8...a1
Valid
INTERACTIVE EXAMPLE

Anatomy of a Decision Anchor

Click any field to understand what it captures and why.

"anchor_id": "da-2026-03-15-00847",
Unique identifier for this decision record. Every decision in every mission gets one. Sequential, traceable, never reused.
"timestamp": "2026-03-15T14:32:07.291Z",
ISO 8601 timestamp with millisecond precision. When exactly this decision was made. Immutable once recorded.
"mission_id": "msn-compliance-q1-review",
The business objective this decision belongs to. Links this anchor to the broader execution context.
"stage": "execute",
Which phase of the Hivemind cycle (plan, execute, verify) this decision occurred in.
"agent_id": "agent-compliance-07",
The specific agent instance that made this decision. Every agent is uniquely identified and scoped.
"action": "analyze_regulatory_filing",
What the agent was doing when this decision was made. The operation being performed.
"decision": "flag_inconsistency",
The choice the agent made. The actual decision recorded for audit.
"alternatives_considered": [
"approve_as_compliant",
"request_additional_documentation",
"flag_inconsistency"
],
Every option the agent evaluated before deciding. Not just the winner — all candidates. This is what makes the decision explainable.
"rationale": "Filing section 4.2 references Q3 figures that conflict with audited financials by >2% threshold defined in POL-COMPL-003.",
The agent's reasoning in natural language. Why this decision and not another. Reviewable by humans after the fact.
"policy_reference": "POL-COMPL-003",
Which organizational policy governed this decision. Links the decision to the compliance framework.
"confidence": 0.94,
The agent's self-assessed confidence in this decision. Values below threshold trigger escalation or re-evaluation.
"budget_consumed": "tokens": 1847, "cost_usd": 0.0037,
Exact computational cost of this decision — tokens used and USD cost. Full cost transparency per decision.
"hash_previous": "a7f3b2...c491e8",
SHA-256 hash of the previous anchor in the chain. Cryptographic link to history. If any previous anchor is tampered with, this hash breaks.
"hash_current": "e8d1f4...b72a03",
SHA-256 hash of THIS anchor's contents. Computed over all fields above. Any modification to this record invalidates this hash.
"hmac_integrity": "verified"
HMAC verification status. Confirms the hash chain is intact up to and including this anchor.

Illustrative example. Field structure represents the actual Decision Anchor schema used in Hivemind.

CREDENTIALS

Enterprise-grade encryption

All credentials are encrypted with AES-256-GCM using BYTEA storage, key versioning with rotation support, and AAD tenant binding. Constant-time comparison prevents timing attacks. Every credential operation is logged in the audit trail.

INVARIANTS

71 rules, codified and enforced

Hivemind enforces 71 security invariants — not as documentation, but as automated tests that run in CI on every commit. If an invariant is violated, the build fails. No exceptions. No overrides.

INV-PROFILE-002User profile data never influences security decisions
INV-CRED-007Credentials are never logged, cached, or exposed in any channel
INV-POLICY-001Policy engine unavailability triggers full execution halt
INV-ATTR-003No commit may expose AI provider identification in source
CAPABILITY TOKENS

Scoped access, zero implicit trust

Every agent spawned by Hivemind receives a capability token that defines exactly what it can do — which operations are permitted, which resources it can access, and what budget it can consume. No agent has unrestricted access to the system. Privileges are never assumed — they are explicitly granted and continuously enforced.

ATTRIBUTION ENFORCEMENT

IP protection by design

Hivemind's CI pipeline blocks any commit that would expose information about the AI providers used internally. No external party can determine which models Hivemind uses by inspecting source code, API responses, or logs. This is not a policy — it is automated enforcement that cannot be bypassed.

TENANT ISOLATION

Complete workspace segregation

Every organization operates in fully isolated workspaces. Credentials are encrypted per-tenant with dedicated key material. Permissions follow a strict role hierarchy — owner, admin, member, viewer — with no cross-tenant data leakage possible by design.

Want to review our security model in detail?

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