Data centre network cabling, part of the critical plant a data centre security risk assessment protects

Security risk guide

Data centre security risk assessment

Physical, personnel and supply chain security for the facilities that hold critical data.

A data centre security risk assessment examines the physical, personnel and supply chain threats to a facility that stores or processes data, from forced entry and insider misuse to the loss of power, cooling or connectivity, and tests whether its layered controls protect the halls, plant and people that keep it running. For many Australian operators it also supports obligations under the Security of Critical Infrastructure Act 2018, where data storage or processing is one of the asset classes that must maintain a critical infrastructure risk management program.

  • Data storage or processing is one of the asset classes covered by the critical infrastructure risk management program (CIRMP) obligation under the SOCI Act.
  • A CIRMP must address physical, personnel, supply chain and cyber hazards, so physical security is a legal requirement, not only a customer expectation.
  • Insiders and contractors with legitimate access are often the most significant risk, so access management and credential control matter as much as fences.
  • Critical plant, such as generators, fuel, cooling, substations and fibre entry, needs the same protection as the data halls.
Obligations

What security obligations apply to data centres?

The CIRMP obligation under the SOCI Act applies to responsible entities for 13 classes of critical infrastructure asset, including data storage or processing assets.1 The Critical Infrastructure Risk Management Program Rules require the program to identify and manage material risks across cyber and information security, personnel, supply chain and physical security and natural hazards.2 The physical and personnel requirements are explained in Agilient’s CIRMP physical security playbook and CIRMP personnel security playbook.

Operators that host Australian Government data may also need certification under the Government’s Hosting Certification Framework, and many customers ask for evidence of an independent physical security review as part of their own assurance.

Method

What does a data centre security risk assessment cover?

  • Perimeter and approach: fencing, vehicle approach and standoff, gatehouse and delivery control.
  • Layered access zones: from the lobby and mantrap to the data hall, cage and rack, with the controls at each layer matched to what it protects.
  • Credentials and people: issue and return of access cards, visitor and contractor escort, critical worker identification and insider risk.
  • Critical plant: generators, fuel storage, cooling, substations, battery rooms and fibre entry points.
  • Detection and response: intruder alarms, CCTV coverage and retention, monitoring, and how quickly a credible response arrives.
  • Shared facilities and natural hazards: colocation risks between tenants, flood, bushfire and extreme heat.

The method follows AS ISO 31000:2018, so the findings can feed directly into the CIRMP and the board’s annual report.

How we help

How Agilient supports data centre security

Agilient provides independent security risk assessments and physical security reviews for data centre operators and the agencies that use them. Examples include a PSPF roadmap and independent physical security review of an outsourced data centre for a Commonwealth agency, an internal management system audit for a global data centre operator and the revision of a data centre operator’s management system for recertification. Agilient is independent of equipment suppliers and installers.

Other security risk assessment guides: crowded places and events, construction sites, data centres, high-profile homes and the step-by-step security risk assessment process.

Free download

Free security threat and risk assessment template. An editable Word template that follows SA HB 167:2025 and AS ISO 31000:2018, with a threat assessment, a five by five risk matrix, a risk register and a treatment plan.

Get the free templateSee all free tools and templates

Reviewing a data centre or preparing for your CIRMP report?

A short briefing will show how your facility’s physical and personnel controls stand against the risk and the SOCI Act rules.

FAQs

Data centre security FAQs

Is a data centre critical infrastructure in Australia?
It can be. Data storage or processing assets are one of the classes of critical infrastructure asset under the SOCI Act, and responsible entities for those assets must maintain a critical infrastructure risk management program.
What does a data centre security risk assessment cover?
It covers the perimeter and approach, layered access zones from the lobby to the rack, credentials and insider risk, critical plant such as generators and cooling, detection and response, shared facility risks and natural hazards, and ranks the treatments by risk.
Why does physical security matter for a data centre?
Most data centre controls can be defeated by someone with physical access to the equipment or the plant that keeps it running. Physical and personnel security protect the availability and integrity of everything hosted in the facility.
Does Agilient sell or install data centre security systems?
No. Agilient is an independent consultancy. It assesses risk, reviews designs and controls, and helps operators specify and procure the right systems, but it does not sell or install equipment.
References

  1. MinterEllison, SOCI risk management program requirements now in effect, minterellison.com
  2. Federal Register of Legislation, Security of Critical Infrastructure (Critical infrastructure risk management program) Rules (LIN 23/006), legislation.gov.au
  3. Australian Government, Hosting Certification Framework, hostingcertification.gov.au