ARXIMUS SECURITY

AI RUNTIME SECURITY
Engineered to assume compromise

Arximus is engineered to remain controlled even when components fail or are compromised. Separated authority, isolated security domains and controlled release prevent a single compromise from becoming unrestricted access, execution or control.

ASSUME BREACH TENANT ISOLATION TRUSTED AUTHORITY INTENT INTEGRITY DETERMINISTIC POLICY PROTECTED RELEASE PRIVILEGED AUTHORITY EVIDENCE INTEGRITY
COMPROMISED AI

A compromised AI
remains inside enforced authority.

A compromised AI is still subject to the same authority, policy and release controls. It cannot grant itself additional authority or make an unauthorized consequential operation valid simply by requesting it.

Arximus authority controls do not depend on first detecting that the AI has been compromised. The same authority and release requirements apply to every protected operation, whether the AI is compromised or not.

COMPROMISE The AI is manipulated or fails

Hostile context, poisoned inputs, manipulated tools or model error changes the AI's behavior and causes it to act outside its intended role.

→
ATTEMPT The AI requests an unauthorized operation

The compromised AI proposes an action, resource, destination or protected parameters that exceed the authority originally granted to it.

→
AUTHORIZATION Arximus evaluates the operation anyway

The request still passes through trusted identity, delegated authority, the exact operation, current state, required external facts and deterministic policy.

→
OUTCOME The unauthorized operation is not released

Because the required authority or conditions are missing, Arximus denies, restricts or holds the operation instead of releasing it for execution.

AUTHORITY INTEGRITY

The authority behind an operation cannot silently change.

Arximus protects the identity, ownership, meaning and authorization of consequential operations across the complete runtime path. Retries, configuration rollback, protocol changes, duplicate Intent and cryptographic compromise cannot silently redefine what was authorized.

CANONICAL SCOPE

Ownership cannot be rewritten through request data

Tenant, Project and Environment form one trusted hierarchy. Arximus derives ownership from trusted scope and rejects inconsistent combinations instead of trying to repair them.

  • Trusted scope
  • Canonical ownership
  • Mismatch rejection
INTENT INTEGRITY

One logical Intent cannot silently become two releases

Arximus distinguishes a legitimate retry from a conflicting or duplicate consequential operation. Ambiguous operations can be held rather than risk being released twice.

  • Intent integrity
  • Duplicate detection
  • One-Intent release boundary
ANTI-ROLLBACK

Old configuration cannot be replayed as current authority

Signed policy content is not enough by itself. Runtime also requires current activation authority, preventing historically valid configuration from silently becoming active again.

  • Immutable configuration
  • Forward-moving activation
  • Rollback protection
CRYPTOGRAPHIC AUTHORITY

A valid signature does not automatically create authority

Cryptographic proof is evaluated together with purpose, security scope, current trust state, revocation and lifecycle before signed material can become usable authority.

  • Purpose separation
  • Trust-state enforcement
  • Compromise containment
PROTOCOL INTEGRITY

Protocol changes cannot rewrite security meaning

External protocols can evolve without silently changing the identity, scope, Intent, authority or release semantics enforced by the canonical Arximus security model.

  • Versioned protocol semantics
  • Canonical security model
  • No silent downgrade
COMPROMISE CONTAINMENT

A compromise cannot automatically spread across domains or tenants.

Arximus separates security responsibilities and customer boundaries so compromise of one component, privilege domain or tenant does not automatically unlock the rest of the platform. Configuration, authorization, protected release, extensions, evidence and customer execution remain separated, while tenant-scoped security objects remain bound to trusted customer context.

DOMAIN CONFIGURE DECIDE RELEASE EXECUTE REWRITE HISTORY
Control Plane YES NO NO NO NO
Runtime Data Plane NO YES NO NO NO
Protected Release Plane NO NO YES NO NO
Extension Plane NO FACTS ONLY NO NO NO
Evidence Plane NO NO NO NO APPEND ONLY
Customer Executor OUTSIDE OUTSIDE RECEIVES YES OUTSIDE
CONTROL PLANE CONFIGURES → RUNTIME DECIDES → RELEASE PLANE RELEASES → CUSTOMER EXECUTOR EXECUTES → EVIDENCE PLANE RECORDS
01

Tenant Isolation

One customer environment must not become access to another.

Policies, credentials, connectors, actions, verification sources, extensions, evidence, usage and runtime state remain scoped to authenticated tenant, project and environment context. Access requires trusted tenant identity and explicit application-level authorization.

  • Trusted tenant identity
  • Tenant-scoped security objects
  • Explicit authorization
02

Availability Containment

One tenant or workload cannot consume unrestricted platform capacity.

Admission controls, connection limits, bounded queues, compute isolation, load shedding and backpressure constrain resource consumption so overload or abuse in one tenant or workload cannot automatically become platform-wide impact.

  • Tenant-scoped limits
  • Resource containment
  • Controlled overload behavior
TRUSTED CONTEXT

AI claims cannot establish trusted authority.

The customer defines authority. The AI can request actions, but it cannot redefine the authority and policy Arximus enforces over those actions. AI-generated claims can inform a decision, but they cannot establish trusted identity, authority or classification on their own. Arximus separates asserted information from security context backed by configured trusted mechanisms.

TRUSTED IDENTITY

Identity must come from a trusted source

Identity must come from a trusted authority appropriate to the actor. Human authority, workload identity, application identity and signed runtime context remain separate trust mechanisms. An AI, client or compromised workload cannot establish privilege simply by claiming an identity.

  • Human principal
  • Application identity
  • Agent identity
  • Signed context
DELEGATED AUTHORITY

Authority cannot expand through delegation

Authority can be constrained as work moves from a principal to an application, agent or sub-agent. A downstream actor cannot automatically inherit or exceed the authority granted earlier in the chain.

  • Delegated authority
  • Reduced scope
  • Action limits
  • Least authority
TYPED ACTIONS

The AI cannot rename an action to escape policy

Typed Action Schemas map trusted tools, routes, protected functions and configured sources to security operations. Relabeling a protected payment, deployment or other consequential operation does not change the policy that applies to it.

  • Action Schemas
  • Trusted mappings
  • Protected fields
  • Parameter integrity
AUTHORITATIVE FACTS

External facts are verified, not assumed

When authorization depends on an approval, entitlement, limit, change record or other authoritative fact, Arximus can verify it against a configured customer-approved source instead of accepting an AI assertion as truth.

  • Approvals
  • Entitlements
  • Risk decisions
  • Customer systems
HELD REVIEW

Human review can resolve a hold without rewriting authority

Reviewers can continue processing, cancel a held package, resolve Intent ambiguity or escalate a security incident. Human review cannot change the authorization of the operation.

  • CONTINUE / CANCEL
  • SAME_INTENT / DISTINCT_INTENT
  • SECURITY_INCIDENT
SAFE SECURITY CHANGE

Only trusted policy can change runtime authorization.

Configuration changes have no effect on runtime authorization until a trusted version is deliberately published and activated. Runtime configuration is immutable and signed, while activation authority moves forward independently. A previously valid configuration cannot simply be replayed as current production authority.

DEFINE

Define & compile

Create policy against typed security context and compile it into a trusted runtime representation before it becomes eligible for activation.

Source → Parse → Compile
TEST

Test before enforcement

Test new policy against representative or historical security context to see what it would allow, deny, restrict or hold before it can affect production.

Policy → Test Context → Result
SHADOW

Observe before activation

Run new policy in non-enforcing shadow mode to observe the decisions it would produce under live runtime context, then complete any required review or approval before production activation.

Shadow → Review → Approve
ACTIVATE

Prevent configuration rollback attacks

Runtime accepts only trusted activation state that moves forward. Returning to older policy content requires a new authorized activation rather than replaying old authority.

Sign → Authorize → Activate → Advance
CONTROL PLANE → COMPILE + VERSION → SIGN IMMUTABLE CONFIGURATION → AUTHORIZE NEW ACTIVATION → RUNTIME VERIFY + ACTIVATE
PRIVILEGED AUTHORITY

Administrative compromise cannot become unrestricted production control.

Arximus separates normal employee access from privileged production authority. Sensitive administrative authority is bound to the exact privileged action, target and security scope being exercised rather than granted as broad standing production control. Critical emergency authority remains separately protected.

SEPARATE PRIVILEGED IDENTITY

Production administration is a separate authority

Normal employee access does not automatically become production-administration access. Privileged operations use dedicated administrative identity and stronger authentication appropriate to the authority being exercised.

  • Separate privileged identity
  • Phishing-resistant authentication
  • No implicit production authority
ACTION-SCOPED AUTHORITY

Privileged authority is limited to the action being performed

High-risk administration is tied to a dedicated privileged identity and the exact operation, target and scope being changed. Arximus does not rely on temporary broad superuser sessions as the security boundary.

  • Action-scoped authority
  • Explicit target binding
  • Audited privileged operations
SEPARATED PRODUCTION AUTHORITY

No administrator holds every production privilege

Runtime, protected release, secrets, evidence, customer data, policy deployment and infrastructure administration remain independently controlled so one privileged identity does not automatically inherit every security role.

  • Separated production domains
  • Least privilege
  • Independent authority
INDEPENDENT EMERGENCY AUTHORITY

Critical release can be stopped outside normal administration

A separately protected emergency authority can stop protected release or disable dangerous release paths even when the normal Control Plane is unavailable or compromised.

  • Independent shutdown authority
  • Protected emergency path
  • Strong audit evidence
PRODUCTION & RECOVERY INTEGRITY

Compromised development access cannot silently become production authority.

Source control, build infrastructure, production admission and recovery systems are part of the Arximus security boundary. Changing source code is separated from the authority to place that code into production, while recovery remains protected from routine production administration.

SOURCE

Source changes require controlled authority

Protected repositories, restricted maintainers, protected branches and mandatory review constrain who can change trusted Arximus source and release workflows.

Change → Review → Approved Source
BUILD

The build path is separated from standing production access

Build environments are isolated from long-lived production authority, while dependency controls, security scanning, artifact integrity and build provenance protect the path from source to release artifact.

Source → Isolated Build → Trusted Artifact
ADMISSION

Production accepts only the authorized release path

Production deployment is restricted to approved and trusted artifacts from the authorized build path. Manual replacement of runtime files does not become an alternate production release mechanism.

Trusted Artifact → Controlled Admission → Production
RECOVERY

Production compromise does not automatically control recovery

Backups use separate protection, restricted deletion and independent access controls so compromise of normal production administration does not automatically provide authority to destroy both production and recovery data.

Production Authority ≠ Recovery Authority
CUSTOMER CODE ISOLATION

Customer code cannot access Arximus infrastructure.

Customers can add organization-specific security logic and route consequential operations through Arximus without making that code part of trusted Arximus infrastructure. Private Security Extensions run only inside isolated sandboxes. Customer business operations never run inside Arximus, whether they are submitted by the AI or released from a Protected Execution Function held by Arximus.

01

Private Security Extension

Runs only inside an isolated, Event-bound Arximus sandbox.

A private extension receives structured security context and only explicitly granted capabilities. Its authority exists only for the Event that invoked it, and it must terminate before that Event completes Protected Release. It can return facts, classifications, transformations, enrichment or workflow results without becoming authorization or release authority.

  • Event-bound execution
  • Isolated sandbox
  • Explicit capabilities
  • No independent runtime authority
02

Protected Execution

Business operations never run inside Arximus.

Customers can submit an operation their AI or application already possesses, or use a Protected Execution Function that Arximus stores and versions for stronger separation. In both modes, Arximus authorizes and binds the exact operation before controlled release to the customer-controlled executor. With a Protected Execution Function, the requesting AI does not need to possess the protected function at all.

  • Submitted operation
  • Protected function option
  • Exact release binding
  • Customer-controlled execution
PRIVATE EXTENSION BOUNDARY No other tenants No provider credentials No customer execution credentials No Control Plane database No signing keys No arbitrary Internet by default
PROTECTED RELEASE INTEGRITY

Authorization stays bound to the operation that earned it.

Arximus protects the release path against changed parameters, changed destinations, conflicting Intent, stale authority and replay. Only the exact operation that passed authorization can become the operation Arximus releases.

BIND

Bind authority to the exact operation

Action, resource, destination and protected values remain part of the authorization itself instead of becoming reusable permission.

DECISION → EXACT OPERATION
REVALIDATE

Check current authority before release

Current release authority, operation binding and applicable security state are verified again before protected material can leave Arximus.

CURRENT AUTHORITY → RELEASE
SINGLE USE

A completed release cannot simply be repeated

Successful release consumes the matching single-use authority as part of the same protected transition, preventing the same authorization from silently producing another release.

RELEASE → CONSUME
BOUNDARY

Customer execution remains separate

RELEASED means Arximus made the exact authorized material available through the protected release interface. The customer-controlled system decides what happens after that boundary.

ARXIMUS RELEASE → CUSTOMER EXECUTION
FAILURE CONTROL

Technical failure cannot create authorization.

Security-critical failure is never treated as permission. Failure behavior is explicit for each workload and action class. Missing policy, required verification, release authentication or other mandatory security dependencies cannot become an implicit allow. Critical paths hold or fail closed, while lower-risk paths follow explicitly configured failure behavior.

Failure Enforced Response Security Principle
External verifier unavailable A critical operation requiring authoritative verification remains on HOLD. Missing facts cannot become approval.
Control Plane unavailable Runtime uses the last valid signed known-good policy bundle according to defined operational policy. Mutable Control Plane state is not runtime authority.
No valid policy available Protected release is denied. No trusted policy means no release authority.
Customer analysis unavailable The configured failure policy for that action class determines the outcome. A required analysis result cannot silently disappear from authorization.
Required release authentication unavailable The protected operation cannot be released through that path. Required release prerequisites cannot be bypassed.
Evidence dependency unavailable Critical operations follow explicit failure policy; lower-risk events use durable buffering where configured and supported. Evidence failure cannot be silently ignored.
VERIFIABLE EVIDENCE

Security history that does not depend on trusting the runtime that created it.

Arximus preserves authorization and release history as immutable, causally linked Evidence. Distributed Evidence is committed into cryptographically protected checkpoints so historical security facts remain independently verifiable without forcing unrelated operations into one global chain.

CAUSAL

Preserve why security events are connected

Evidence records carry explicit causal relationships so authorization, verification, HOLD and release can be reconstructed without inventing a global order between unrelated operations.

IMMUTABLE

Historical Evidence cannot be silently rewritten

Runtime components can create security Evidence without gaining ordinary authority to edit the historical records they already produced.

CHECKPOINT

Distributed history remains cryptographically verifiable

Evidence is committed into protected checkpoint generations that allow historical membership and integrity to be independently verified.

ANCHOR

Verification can extend beyond the Evidence system

Higher-assurance deployments can anchor protected checkpoint material outside the normal Evidence path for additional independent verification.

THREAT MODEL

Compromise cannot become unrestricted authority.

Arximus does not depend on identifying every attack in advance. Compromised AI, customer code, administrative access and individual platform components remain subject to enforced authority, isolation and release boundaries. Compromise of one part cannot automatically provide unrestricted authority over the rest.

01

Compromised AI

Manipulated instructions, poisoned context or unsafe model behavior.

Compromise does not change the authority attached to an operation. Trusted identity, delegated authority, resource, destination, protected parameters, runtime state and deterministic policy still govern what can be authorized and released.

  • Trusted authority
  • State & provenance
  • Deterministic policy
02

Identity Spoofing

AI or client claims privileges it does not actually hold.

Identity and delegated authority originate from configured trusted mechanisms, not AI or client assertions. Claiming a role, principal or privilege cannot establish it.

  • Trusted identity
  • Delegation chain
  • No self-asserted authority
03

Parameter Substitution & Replay

Reuse a previous authorization with changed values or repeat it later.

Protected Release binds authority to the exact operation, protected parameters and approved destination. Changing a protected value invalidates the earlier decision. Intent integrity prevents a logical operation from silently becoming multiple releases, while single-use release authority rejects replay after consumption.

  • Exact operation binding
  • Intent-level duplicate protection
  • Single-use release authority
04

Direct Bypass

AI attempts to reach a protected customer system outside the authorized path.

When Arximus Lock is enabled, the customer executor, gateway, network or protected system enforces the trusted Arximus release path and rejects protected operations that attempt to bypass it. Execution authority remains unavailable to the AI.

  • Trusted release path
  • Direct-path rejection
  • Execution authority isolation
05

Malicious Customer Code

Customer-supplied logic or protected artifacts contain hostile behavior.

Private Security Extensions run behind a hardened isolation boundary with narrowly granted capabilities and no implicit access to privileged Arximus infrastructure. Customer business operations, whether submitted through Arximus or stored as Protected Execution Functions, are never executed inside Arximus.

  • Sandbox isolation
  • Explicit capabilities
  • No in-platform business execution
06

Control Plane Compromise

Dashboard, administration or configuration storage is compromised.

Control Plane compromise cannot directly rewrite live runtime authorization. Runtime configuration is immutable and signed, and current activation authority advances independently so an attacker cannot turn an old valid configuration back into current production authority simply by replaying it.

  • Signed immutable configuration
  • Anti-rollback activation
  • Runtime verification
07

Evidence Tampering

An attacker attempts to alter the history of authorization or release.

Security Evidence is separated from ordinary content and preserved as immutable, causally linked records. Cryptographic checkpoint commitments protect large distributed Evidence sets without forcing unrelated operations into one fragile global chain.

  • Immutable causal Evidence
  • Cryptographic checkpoint commitments
  • Independent verification
08

Internal Service Compromise

One Arximus workload or cryptographic role is compromised.

Internal workloads receive narrow identities, permissions, network access and cryptographic roles. Cryptographic authority is separated by purpose, so compromising one service, key or signing role does not automatically grant the authority of another security domain.

  • Narrow workload identity
  • Default-deny access
  • Cryptographic separation
09

Tenant Breakout

One customer attempts to reach another tenant's protected data or security objects.

Security ownership follows one canonical Tenant, Project and Environment hierarchy derived from trusted context. Conflicting scope cannot be repaired or accepted as an alternate interpretation, and security objects remain bound to the scope that actually owns them.

  • Canonical SecurityScope
  • Trusted ownership derivation
  • Cross-tenant mismatch rejection
10

Privileged Administration Compromise

An employee or privileged administrative identity is compromised.

Privileged production authority is separated from normal employee access and constrained through stronger authentication, action-scoped administrative authority, independent privilege domains and audit. A separately protected emergency authority remains available to stop critical release outside the normal Control Plane.

  • Action-scoped authority
  • Separated administrative authority
  • Independent emergency control
11

Source & Build Pipeline Compromise

An attacker gains access to source control, build infrastructure or a release workflow.

Source changes, build authority and production admission remain separate control points. Protected repositories, mandatory review, isolated builds, trusted artifacts and controlled deployment prevent ordinary development access from silently becoming unrestricted production replacement authority.

  • Protected source
  • Trusted build artifacts
  • Controlled production admission
12

Recovery Destruction

An attacker with production authority attempts to destroy both live systems and recovery data.

Recovery data remains protected through encryption, isolation, restricted deletion and independent access controls so compromise of normal production administration does not automatically provide authority over every backup.

  • Isolated backups
  • Restricted deletion
  • Independent recovery authority
SECURITY ASSURANCE

Enforced authority under failure and compromise.

Arximus constrains what compromised AI, customer code, tenants, administrative identities and individual platform components can reach next. Trusted authority, tenant isolation, separated privileges, controlled production change, protected execution, explicit failure behavior and integrity-protected evidence keep compromise from automatically becoming unrestricted control.

SECURITY MODEL
Compromise remains inside enforced boundaries
  • AI cannot establish its own trusted identity, authority or permissions.
  • Tenant boundaries prevent one customer environment from automatically becoming access to another.
  • Deterministic policy remains the root authorization authority.
  • Protected release binds authorization to the exact approved operation while customer systems retain execution authority.
  • Security domains and customer extensions operate with separated privileges and trust boundaries.
  • Privileged production access is constrained, while critical emergency shutdown remains independently protected.
  • Source, build, production admission and recovery authority remain separated.
  • Technical failure cannot create authorization.
  • Authorization, release and reported execution evidence is integrity-protected.