Belgian sovereign cyber defense

SECURITY
WITHOUT
COMPROMISE.

NexAris secures, remediates and automates high-risk IT environments with senior human expertise and sovereign AI agents. Every mission is designed around verifiable controls, zero-retention execution, customer-owned evidence and policy-bounded autonomy.

BE / EU Sovereign CyFun® Certified NIS2 Compliance SAAL™ AI Assurance FIPS 140-3 Validated Crypto 0 retention AI
Classy cyber defense executive in a black suit
Human judgment / Agent speed
Security leadership for environments where AI, identity, cryptography and regulation converge. NexAris · Belgium / Europe
Mission controlCustomer controlled
AI retention0 / local only
EvidenceFully auditable
ComplianceNIS2 • CyFun®
CryptographyPKI • HSM • FIPS 140-3
AI assuranceSAAL™ • Zero-retention • Air-gap
Delivery modelHumans + autonomous agents
Capabilities

Built for environments where “mostly secure” is not enough.

From executive risk to packet-level remediation: one team can assess, design, implement, automate and produce the evidence needed to prove the work.

01 / RISK + NIS2

NIS2 & CyFun compliance engineering

Turn regulatory obligations into an executable security program rather than a stack of policy documents.

  • Scoping & gap assessment
  • Risk register & prioritisation
  • Mitigation roadmap & evidence pack
02 / AI AUDIT

AI security & exposure audits

Assess where AI is used, what it can access, how data flows, and where autonomous actions introduce unacceptable risk.

  • Agent permissions & tool access
  • Prompt/data leakage review
  • Model, RAG & API attack surface
03 / REMEDIATION

AI-assisted technical remediation

Move from findings to fixes. Human-reviewed agents accelerate repetitive hardening and make each change traceable.

  • Configuration hardening
  • Exposure reduction
  • Automated validation & rollback
04 / NETWORK

Segmentation & segregation

Contain blast radius through identity-aware network zoning, east-west controls, privileged paths and restricted management planes.

  • Critical asset mapping
  • Zero-trust segmentation design
  • Firewall / ACL / NAC implementation
05 / CRYPTO

PKI, HSM & cryptographic architecture

Protect keys, identities and trust anchors with sovereign designs and validated cryptographic components.

  • PKI lifecycle & certificate automation
  • HSM / key ceremony / key custody
  • FIPS 140-3 validated modules
06 / MESSAGING

SMTP & mail security

Reduce phishing, spoofing and mail-flow abuse without blindly outsourcing your control plane.

  • SPF / DKIM / DMARC hardening
  • Secure mail gateways & relays
  • Open-source filtering & observability
07 / RESPONSE

Autonomous containment & response

Customer-approved playbooks can investigate, isolate, block, rotate or escalate in seconds—while retaining a complete audit trail.

  • Policy-bounded autonomy
  • Human approval gates
  • Evidence-first incident actions
08 / OPEN SOURCE

Open-source security engineering

Deploy transparent, inspectable solutions where they outperform costly black boxes—and integrate them properly.

  • Security tooling & automation
  • Source-level review
  • Maintainable internal ownership
09 / HARDENING

Unsafe environment recovery

For inherited, undocumented or risky estates: establish control, remove obvious exposure, then rebuild toward a measurable target state.

  • Emergency baseline hardening
  • Privilege & identity cleanup
  • Technical debt burn-down
Sovereign AI missions

AI with a security boundary you can prove.

Use AI on sensitive systems without surrendering control of the data plane. Missions can run with zero external retention, customer-controlled keys, isolated model endpoints, on-premise inference or fully air-gapped execution. Every prompt, retrieval, tool call, approval and action can be retained as customer-owned evidence.

00

Zero retention

No mission data retained by external AI services.

AG

Air-gap capable

Operate without Internet access in high-security zones.

AU

Fully auditable

Prompts, tool calls, approvals and actions are recorded.

KY

Customer key control

Integrate HSM-backed secrets and cryptographic policy.

nexaris@sovereign:~$ mission inspect --scope critical-infra
[+] loading customer policy boundary...
[OK] external retention ............ disabled
[OK] telemetry export .............. disabled
[OK] customer audit log ............ enabled
[OK] cryptographic services ........ FIPS 140-3 validated module
[OK] operator approval gates ....... enforced
SAAL boundary verified / 19 findings / 7 priority actions
RISKQuantified & traceable
ACTIONHuman-approved automation
DATAStays in your boundary
EVIDENCEExportable by customer
Sovereign AI Infrastructure

High-assurance AI needs high-assurance compute.

From desk-side AI workstations to datacenter-scale accelerator systems, NexAris designs the security boundary around the compute — identity, network, secrets, storage, telemetry, model supply chain and audit evidence.

Private / Dedicated / Air-gapped

AI infrastructure your auditors can understand.

Deploy sovereign inference on dedicated accelerated systems in your office, datacenter or isolated security zone. NexAris hardens the complete stack around the model so sensitive audit and remediation data stays inside the intended boundary.

GPU Accelerated On-Prem Air-Gapped Zero Retention Customer Keys Signed Models
NetworkDeny-by-default egress
IdentityLeast-privilege agent access
ModelsControlled provenance & hashes
EvidenceCustomer-owned audit trail
NexAris SAAL™ — Sovereign AI Assurance Levels

Cryptographic-grade assurance principles, applied to AI.

SAAL defines the AI security boundary, permitted data flows, retention, model and agent isolation, tool permissions, approval gates, evidence and deployment mode. It is designed to give banks, insurers and critical operators something internal audit can actually verify.

SAAL-1 / CONTROLLED

Governed enterprise AI

Inventory, access control, retention policy, logging and accountable ownership.

SAAL-2 / PRIVATE

Private sensitive-data AI

Zero training, strict retention controls, encrypted data paths, DLP and approved model endpoints.

SAAL-3 / SOVEREIGN

Sovereign regulated AI

Customer-controlled data plane, isolated RAG, full auditability, strict agent permissions and EU/on-prem execution.

SAAL-4 / RESTRICTED

High-assurance AI missions

Dedicated or on-prem inference, deny-by-default egress, customer-held keys, signed artifacts and approval-gated actions.

SAAL-5 / AIR-GAPPED

Maximum isolation

Offline inference, controlled model import, immutable evidence, dual authorization and no external network dependency.

MISSION ATTESTATION

Evidence, not promises

Every mission can produce a signed assurance record covering where data went, what the AI saw, what it did and what remained.

01

Discover

Assets, trust boundaries, identities, data flows, controls and obligations.

02

Quantify

Rank exposure by exploitability, impact, business dependency and compliance relevance.

03

Remediate

Fix priority weaknesses with change control, rollback and operator review.

04

Automate

Convert repeated defensive work into customer-owned runbooks and guarded agents.

05

Prove

Re-test, collect evidence and leave an auditable trail for management, assessors and regulators.

What you receive

Assessment, remediation and mission attestation.

Outputs are built for executives, engineers, CISOs, DPOs and internal audit at the same time—covering both security posture and the assurance boundary of the AI used to perform the work.

EX

Executive assessment

Material risks, business impact, decisions and investment priorities.

TR

Technical findings

Evidence, exploit path, affected assets, root cause and corrective action.

RR

Risk register

Ownership, severity, deadlines, treatment decision and residual risk.

MP

Mitigation plan

Sequenced remediation with dependencies, quick wins and target state.

NW

Segmentation design

Zones, conduits, trust levels, privileged paths and enforcement points.

EV

SAAL mission attestation

Model identity, execution location, retention, egress, tool calls, approvals, crypto dependencies and signed evidence.

A leaner security operating model

Buy outcomes. Keep control.

Use experienced operators for judgment and sovereign agents for repeatable work. Reduce handoffs, ticket queues and perpetual seat-based overhead.

Traditional managed service

Permanent dependency, layered delivery, slow escalation.
Commercial modelSeats + recurring retainer
ExecutionTicket queues
KnowledgeOften stays with provider
AutomationProvider-controlled
AuditabilityPortal / summary driven
Start with facts

Secure the AI.
Prove the boundary.

Begin with a focused assessment of your critical environment, AI exposure and data flows. NexAris can design a SAAL target state, remediate the gaps and leave internal audit with verifiable evidence.

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