mastercom.com.au
About the organisation
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. Employees: 50 Revenue: $12.7 Million Industry: Telecommunications Phone Number: +61 288219588
What the listing means
mastercom.com.au appeared on the incransom leak site on 11 April 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 33 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing mastercom.com.au as suspicious β leaked data gets weaponised for phishing within days.
- If you hold an account on mastercom.com.au, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Telecommunication organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach β check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/bWFzdGVyY29tLmNvbS5hdUBpbmNyYW5zb20=
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
