Sicarius Pty Ltd · Melbourne, Australia
Three specialist capabilities. One firm. Built for Australian organisations that need evidence, not assumptions.
Dealing with a cyber incident right now? Call 1300 027 401, 24/7.
For incidents and litigation
Digital forensics &
cyber incident response
When something goes wrong — a breach, a fraud, a staff matter — Sicarius investigates. Evidence collected correctly, chain of custody maintained.
Findings produced in a format that courts, insurers, and regulators can act on. Expert witness testimony available.
For Australian small and medium sized businesses
Continuous security monitoring
and evidence reporting
Monitors your business security posture across ten controls and produces signed reports for insurers, clients, and tender panels.
A flat per-device monthly fee. Setup in one session. Evidence on demand — whenever a client, insurer, or panel asks.
For critical infrastructure operators
Intelligence that stops theft
before it compounds
Transforms raw infrastructure theft incidents into cumulative, QA-validated intelligence. Pattern detection, offender profiling, and actionable recommendations.
Built for critical infrastructure operators — power, gas, mining, rail, telco, councils, and construction — facing repeat theft or targeted criminal activity.
Something has gone wrong
Testimonials
"RSM Australia's Fraud & Forensic Services has utilised the professional services of Sicarius Pty Ltd in a partnering model for a range of digital forensic needs for our clients. Sicarius is reliable, professional, digital forensic experts, and have demonstrated the highest level of integrity on which we rely for this component of our forensic investigations for our clients, and as and if necessary the ability for Sicarius to give expert evidence testimony in support of litigation."
Roger Darvall-Stevens
Partner, Fraud & Forensic Services · RSM Australia
"Mark and the team have been invaluable to me and my businesses. Their responsiveness is second to none, and their "bedside manner" is unparalleled. In the moments you need Sicarius the most, Mark and his team know you need experts that care and that is why I trust them implicitly."
Joni Pirovich
CEO · Crystal aOS
Investigations
An employee has resigned. Should you be worried about your data?
Most departures are routine. Some aren't. The warning signs that a departing employee may have taken client lists or files, and how to protect the evidence.
Incident response
The invoice that changed: how payment redirection fraud works
Business email compromise is one of the most common cybercrimes reported by Australian businesses. How it works, the warning signs, and what to do if you've paid.
Your obligations
Do I have to report a data breach? The Notifiable Data Breaches scheme explained
A plain-English guide to the Notifiable Data Breaches scheme for Australian businesses: who it covers, what counts as an eligible breach, and the 30-day assessment rule.