Business risk

One email can stop a business

Email compromise is the most reported cybercrime against Australian businesses. AI now writes those emails in a supplier's tone, about a real invoice, at almost no cost to the attacker.

A$56,600Average cost per cybercrime report, small business (up 14%)
A$97,200Average cost per report, medium business (up 55%)
A$202,700Average cost per report, large business (up 219%)
6 minutesBetween cybercrime reports to ASD, on average

Source: ASD Annual Cyber Threat Report 2024–25, factsheet for businesses. Self-reported costs per report, FY2024–25.

The consequences

What a single compromise costs beyond the incident itself

Downtime, mandatory notification and stalled contracts follow an incident and sit outside its direct cost.

Downtime

Operations stop while systems are locked

Ransomware encrypts the systems the business operates on, including email, finance and file storage.

  • Email and invoicing unavailable
  • Customer files inaccessible
  • Payroll obligations unchanged
  • Wages paid for time staff cannot work
Notification

Notification to the regulator and every affected individual

Under the Notifiable Data Breaches scheme, an eligible breach is notified to the OAIC and to each affected individual.

  • Statement to the OAIC
  • Notice to each affected individual
  • Penalties for serious interference with privacy up to A$50 million, three times the benefit obtained or 30% of adjusted turnover
Lost contracts

Security evidence as a condition of contract

Enterprise and government buyers issue security questionnaires before contract. Where evidence is missing, procurement stalls or the contract goes to a supplier that holds it.

  • Stalled procurement reviews
  • Lost tenders
  • Renewals put at risk
Revenue exposure

Revenue at risk while the business cannot operate

An estimate from annual revenue and working days offline. It excludes recovery, legal costs and customers who do not return.

A$
days

Based on 260 working days a year.

Revenue at risk
A$192,308
Average cost per report, medium business (ASD)A$97,200
Estimated exposureA$289,508

Revenue at risk is annual revenue ÷ 260 × days offline. The ASD figure is the FY2024–25 average self-reported cost per cybercrime report.

What AI has changed

Attacks that once needed a skilled team now run at scale

Generative AI writes convincing phishing in any language, researches a target from public sources and automates steps that took an operator days.

Phishing written for one business

Emails in an executive's writing style that name real suppliers and real invoices.

Consequence: A single approved invoice transfers the payment to the attacker.
Look-alike domains

A near-copy of the company domain, registered in minutes and used against its customers.

Consequence: Customers are defrauded in the company's name.
Exploitation within days of disclosure

Widely deployed software is exploited within days of a vulnerability being published.

Consequence: A monthly patch cycle leaves weeks of exposure.
Ungoverned AI use

Contracts, customer data and source code entered into AI tools without approval.

Consequence: Data leaves the business without a record of its destination.
The comparison

An average incident costs more than a full ISO 27001 cycle

One cybercrime, medium business
A$97,200

Average self-reported cost per report (ASD, FY2024–25), excluding lost revenue, lost customers and regulator penalties.

ISO 27001 with Secure60
From A$57,000 / three years

Under A$1,600 a month across the three-year certification cycle. Secure60 performs about 80% of the work; customer input is scope, risk appetite, sign-off and the audit interview.

Cyber risk, AI transformation and compliance on one platform

Secure60 identifies cyber and AI exposure, governs AI programmes and maintains compliance through the Secure60 security baseline or a certified framework.