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iiNet

iiNet Vendor Cyber Rating & Cyber Score

iinet.net.au
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ISO 27001
SOC 2 Type 1
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iiNet is an Australian Internet Service Provider and a leading challenger in the telecommunications market. We're committed to making it simple for all Australians to get online across both our own ADSL2+ network and the exciting new nbn™ technologies. Our vision is to lead the market with services that harness the potential of the Internet and then differentiate with award-winning customer service. We employ more than 2,500 enthusiastic staff across four countries - 80 per cent of whom are employed to directly service nearly one million customers. iiNet has a proud history of delivering awesome customer service, which has won us dozens of awards, including a silver medal in Customer Service at the 2015 Contact Centre World Best


iiNet A.I CyberSecurity Scoring

Incident Details
iiNet
Company Information
Website:http://www.iinet.net.au
Employees number:839
Number of followers:17,153
NAICS:517
Industry Type:Telecommunications
Homepage:iinet.net.au
Cyber Premium EstimationGet Supply Chain
iiNet Risk Score (AI oriented)
Between 700 and 749
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iiNetTelecommunications
Updated:
01/04/2026
719/1000
Moderate
Ba
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
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iiNet Global Score (TPRM)
xxxx
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iiNetTelecommunications
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Findings

iiNetModerate
Current Score
719Ba (MODERATE)
01000
2 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
OCTOBER 2026
724Before Incident
SEPTEMBER 2026
723Before Incident
AUGUST 2026
722Before Incident
JULY 2026
722Before Incident
JUNE 2026
721Before Incident
MAY 2026
720Before Incident
APRIL 2026
719Before Incident
MARCH 2026
719Before Incident
FEBRUARY 2026
718Before Incident
JANUARY 2026
718Before Incident
DECEMBER 2025
717Before Incident
NOVEMBER 2025
716Before Incident
JUNE 2022
754Before Incident
Breach
16 Jun 2022 • iiNet
iiNet (TPG Telecom)

iiNet Data Breach via Stolen Employee Credentials (2025)

663After Incident
CRITICAL-91
IIN517082025
Australian ISP iiNet (owned by TPG Telecom) confirmed a data breach after hackers exploited stolen employee credentials to access its order management system on 16 August 2025. The attack exposed 280,000 active email accounts, 20,000 landline numbers, 10,000 usernames, street addresses, and phone numbers, and 1,700 modem setup passwords. While no financial or identity documents were compromised, the leaked personal contact details pose risks for phishing, social engineering, and fraud. TPG disabled compromised accounts, engaged external cybersecurity experts, and reported the incident to Australian Cyber Security Centre, National Office of Cyber Security, and OAIC, indicating its severity. This marks the second major breach for TPG since 2022, following a prior email service hack. Customers were advised to reset passwords and monitor for suspicious activity. The breach aligns with a broader trend of Australian telecom cyberattacks, including the 2022 Optus breach affecting millions.
INCIDENT DETAILS -
TYPE
Data BreachUnauthorized Access
MOTIVATION
Data TheftPotential Phishing/Social Engineering Enablement
IMPACT
280,000 email addresses (active iiNet accounts)20,000 landline numbers10,000 usernames10,000 street addresses10,000 phone numbers1,700 modem setup passwordsOrder Management SystemAccount DisruptionsSecurity OverhaulModerate (Second Breach Since 2022)Potential Erosion of TrustPotential Regulatory Scrutiny (OAIC, ACSC)Low (No Financial/ID Documents Exposed)Phishing Risk ElevatedPayment Information Risk: None
DATA BREACH
Email AddressesLandline NumbersUsernamesStreet AddressesPhone NumbersModem Setup PasswordsSensitivity Of Data: Moderate (No Financial/Payment Data, but High Phishing Risk)Names (via usernames)AddressesPhone Numbers
REFERENCES
Blog URLSource URL
JUNE 2008
757Before Incident
Breach
16 Jun 2008 • iiNet
iiNet

iiNet Data Security Breach

672After Incident
CRITICAL-85
IIN161522
Internet provider iiNet suffered a data security breach that compromised the passwords of more than 30,000 customers. The anonymous hacker sold the database of Westnet, a WA-based internet service provider that was acquired by iiNet in 2008 on the dark web. The data included customer username, address, telephone, and, in some cases, password information of Aussies biggest Internet service provider.
INCIDENT DETAILS -
TYPE
Data Breach
MOTIVATION
Financial Gain
IMPACT
Customer UsernameAddressTelephonePassword Information
DATA BREACH
Customer UsernameAddressTelephonePassword InformationNumber Of Records Exposed: 30,000Sensitivity Of Data: High
REFERENCES
Blog URLSource URL

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