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Home / Government & national / MIANGAI active defence
V1 · ACTIVE DEFENCE

When an attack lands, the system acts first, and every step stays auditable.

The government and critical-infrastructure edition of MIANGAI combines DNS security, mail defence, intrusion detection, edge coordination, runtime detection and baseline audit in one loop. Clear-cut attacks are handled inside written authority; anything beyond it escalates to a human.

A security operations desk in a data centre, an operator seen from behind before dark blank monitors, server racks with indicator lights behind
Figure 1 · The defence watch desk: detection, response and audit close the loop in one room.
4defence layers, each deployable alone
4delivery steps, each with deliverables
3deployment models, incl. dedicated networks
1audit chain over every action

Four field problems, first

Agency networks usually share the same pattern: scattered assets, noisy alerts, slow response and thin evidence.

Scattered assets & entry points

Websites, mail, APIs and remote access sit in different systems. Nobody can state the full exposure in one pass.

Mail gateways under pressure

Phishing, spoofed senders and SASL probes keep hitting the gateway. Probes that disconnect early never reach the failure logs older filters rely on.

Alerts that stop at notification

Detection fires, then blocking, isolation and re-verification wait in a human queue while the attack window stays open.

Audit evidence in pieces

Response reasoning spreads across logs and chats. Reviews cannot reconstruct who changed what, or when.

System make-up

Each layer deploys on its own. Together they close the loop.

DNS & mail defence in depth

Local recursive resolution with list coordination, sender-policy checks, gateway screening, authentication-probe detection and rate governance.

  • Local recursive resolution, coordinated lists
  • Sender policy checks: SPF, DKIM, DMARC aligned
  • Gateway screening and disconnect-probe detection
  • Connection and sending rate governance

Detection & automated blocking

Community-intelligence intrusion detection, authentication-attack jails, edge WAF coordination and IP response, all written to an audit chain.

  • Community-intelligence intrusion detection
  • Authentication-attack jails, set and released automatically
  • Edge WAF and IP response in coordination
  • Every action written to the audit chain

Host & runtime detection

Malware scanning, runtime threat detection, file-integrity baselines and host security audit, with baseline drift queued for re-verification.

  • Malware scanning and runtime detection
  • File-integrity baselines and drift alerts
  • Host security audit baselines on file
  • Drift queued for re-verification automatically

Response console

Assets, alerts, authority scope, response records and monthly re-verification reports in one workspace, visible by role.

  • Assets and alerts on one screen
  • Authority scope and escalation on display
  • Response records open by role
  • Monthly re-verification reports archived

How the platform connects

Defence is not sold as an island.

Threat-intelligence feed

The situational core supplies public threat and event data, cross-checked against local alerts.

ONE managed operations

Monitoring, response and re-verification run on the operations foundation. High-impact actions keep human approval.

Institutional identity

Institutional One ID separates who can change policy from who can approve a response, with access logged.

Delivery & deployment

Start with one real-environment deployment and audit re-verification, then set the managed scope. Every step leaves something you can inspect.

1

Asset inventory

List domains, mail, hosts, edge and remote entry points. Draw the exposure first.
Deliverables: the asset and exposure inventory, and an entry-point map.

2

Baseline deployment

Deploy detection and policy against the client environment, reconciling legacy rules one by one.
Deliverables: the deployment record, a policy crosswalk, and a disposition for every legacy rule.

3

Controlled exercise

Test detection, blocking and rollback with probes and replayed samples. False positives are recorded separately.
Deliverables: the exercise report (hits, latency, false positives) and the rollback verification record.

4

Acceptance & operation

After the baseline passes re-verification, go live into managed operation or hand over to the client team.
Deliverables: the acceptance sheet with the four checks, and a managed-operation plan or handover list.

  • Sensors and agents sit inside client infrastructure. The console can run on approved cloud, customer premises or a dedicated network.
  • System supply, implementation and managed security operation can be contracted separately.
  • Acceptance checks four things: detection hits, response time, false-positive record and audit-chain completeness.

Compliance & authority limits

Automated defence is fast because the authority is written down first.

Response inside authority

Block targets, durations and escalation conditions are fixed in writing before launch. The system does not widen its own scope.

Supply-chain screening

Equipment and component lists are screened line by line against Section 889. Listed vendors stay out of the design and out of our own estate.

Data minimisation

Defence logs are retained and exported under client policy. Access is role-based; third-party sharing needs client approval.

Review cooperation

Project reviews receive the system architecture, component inventory, sample response records and the baseline re-verification method, checked item by item with the client.

Questions, answered

Does the system block on its own, and what if it blocks wrongly?

It acts only inside written authority, and stops at the line. Block targets, durations and escalation conditions are fixed before launch. Every action lands on the audit chain, false positives are recorded separately, and a policy that fails re-verification rolls back.

Where does it run, and does our data leave our premises?

Sensors and agents run inside your infrastructure; data stays under your policy. The console can run on approved cloud, on your premises or in a dedicated network. Log retention and export follow the contract, and third-party sharing needs your approval.

How does it sit with the security tools we already run?

Inventory first, align second, replace only where it conflicts. Baseline deployment reconciles legacy rules one by one: what can coordinate is connected, what conflicts gets a written disposition before replacement, and the whole change stays on record.

How is the supply chain kept compliant?

Every equipment and component line is screened against Section 889. Listed vendors stay out of the design, the delivery and our own estate. The component inventory carries versions and sources, checked item by item during project review.

What does acceptance actually check?

Four things: detection hits, response time, false positives, audit-chain completeness. A controlled exercise comes first; all four checks pass before the system moves into operation, and the conclusions land on the acceptance sheet.

How is it priced?

Scope first, then a written quote. No prices are published. Send the asset scope and your current security tool list. The first reply covers the deployment route, the authority limits and the acceptance checks; the formal quote follows once scope is confirmed.

Where to next

TRUST

Trust & compliance

Deployment models, data sovereignty, security operations, supply-chain screening and use limits, in one place.

Read the compliance position →

INTELLIGENCE

National intelligence network

Defence needs intelligence feeding it. The public-source awareness graph is the other half.

See the network →

OVERVIEW

National solutions

Five use cases and three foundations on one page.

Back to overview →

Start with one environment audit

Send the asset scope and the current security tool list. The reply covers deployment route, authority limits and acceptance checks.

Send a defence brief →