Summary
On April 11, 2026, the ransomware group Incransom claimed responsibility for a cyberattack targeting
Mastercom Pty Ltd (mastercom.com.au), a key player in the Australian telecommunications sector. The group issued a statement suggesting that sensitive data may be leaked if the company fails to engage in negotiations.
Incident Report
| Field | Details |
|---|---|
| Target | Mastercom Pty Ltd |
| Domain | mastercom.com.au |
| Country | Australia |
| Attacking Group | Incransom |
| Date Reported | April 11, 2026 |
| Threat Actor Statement | “Mastercom is raising the benchmark in Local Government communications in Sydney – building fast, secure and interoperable two way radio communication networks and infrastructure capable of bridging any terrain to enable field workers to be heard loud and clear anywhere, anytime. As a founding partner of The Orion Network we support a number of local government entities including: Newcastle City Council Maitland City Council Penrith City Council. Contact our Sydney two-way radio solutions team to find out more about our local government and emergency response solutions.” |
Recommended Security Actions
Ransomware attacks are increasingly targeting both enterprise and mid-sized organizations across all sectors. The following steps are critical to reduce impact and prevent future incidents:
- Monitor continuously: Use DeXpose’s dark web and infostealer monitoring platform to detect breached credentials, leaked databases, and threat actor chatter in near real-time—before damage spreads internally.
- Conduct a compromise assessment: Immediately initiate a full incident review to determine how attackers infiltrated your network, what data may have been exfiltrated, and whether any persistence mechanisms remain active.
- Validate your backups: Ensure that your backups are current, encrypted, and stored offline. Utilize immutable backup solutions to defend against ransomware encryption and deletion attempts.
- Apply threat intelligence: Integrate external threat feeds, including DeXpose-provided indicators of compromise (IOCs), into your SIEM or XDR platforms for real-time alerting and correlation.
- Harden employee defenses: Run phishing simulations and enforce multi-factor authentication (MFA) across all access points. Attackers often exploit weak or reused credentials sourced from the dark web.
- Engage professional response teams: Involve cybersecurity incident response experts, threat analysts, and legal counsel before initiating any dialogue with ransomware groups or ransom brokers.
How DeXpose Helps You Stay Ahead
At DeXpose, we specialize in early detection and proactive defense. Our hybrid threat intelligence solution combines automated deep/dark web crawling, Telegram and forum monitoring, and real analyst verification to deliver:
- Continuous scanning of ransomware group leak sites, stolen credential markets, and malware log dumps
- Timely alerts for breaches linked to your domains, email addresses, and key personnel
- Intelligence correlation that connects leaked credentials to infostealer malware infections, often weeks before a public ransom demand
- Real-time visibility into supply chain and third-party exposures through passive surveillance of dark web channels
Don’t wait for public disclosure or ransom notices—gain visibility into your cyber exposure now.
-
Scan your domain for data breaches:
Free Dark Web Report -
Check employee or partner email exposure:
Email Data Breach Scan
Disclaimer
DeXpose does not engage in the exfiltration, hosting, redistribution, or purchase of stolen data. All breach information reported here is collected from publicly accessible dark web sources and threat intelligence platforms.
Our mission is to equip organizations with early-warning indicators, contextual threat insights, and actionable intelligence that help them secure their digital assets against evolving cyber threats.
