
Medibank Company Cyber Security Posture
medibank.com.auAt Medibank we are motivated by improving the health of all Australians and the health of our members. We are passionate about building a better health system that is centred on people, and sustainable in the long term. Medibankโs core business is the underwriting and distribution of private health insurance policies through our two brands, Medibank and ahm. We also provide a range of integrated healthcare services to our private health insurance policyholders, government, corporate and other retail customers. Medibankโs headquarters are in Melbourne, Victoria, with operations throughout Australia.
Medibank Company Details
medibank
3560 employees
52088.0
524
Insurance
medibank.com.au
Scan still pending
MED_1116859
In-progress

Between 900 and 1000
This score is AI-generated and less favored by cyber insurers, who prefer the TPRM score.

.png)

Medibank Company Scoring based on AI Models
Model Name | Date | Description | Current Score Difference | Score |
---|---|---|---|---|
AVERAGE-Industry | 03-12-2025 | This score represents the average cybersecurity rating of companies already scanned within the same industry. It provides a benchmark to compare an individual company's security posture against its industry peers. | N/A | Between 900 and 1000 |
Medibank Company Cyber Security News & History
Entity | Type | Severity | Impact | Seen | Url ID | Details | View |
---|---|---|---|---|---|---|---|
Medibank | Breach | 100 | 6 | 11/2022 | MED048271122 | Link | |
Rankiteo Explanation : Attack threatening the economy of a geographical regionDescription: Medibank, Australia's largest health insurer, has suffered a cybersecurity incident. It has led to a data breach of around 9.7 million of the company's customers and clients. They accessed data such as the name, date of birth, mailing address, phone number and email address of those affected, along with other information such as customer and credit card IDs, among others. | |||||||
Medibank | Cyber Attack | 85 | 4 | 10/2022 | MED192551122 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: Health insurer Medibank Private says it has been hit by a cyber attack. The company said "unusual activity" had been detected on its network on Wednesday, but there was no evidence sensitive data, including customer information, had been accessed. Some customer-facing systems have been taken down which will cause "regrettable disruptions" to some customers, but health services will still be available. It is the latest cyber attack after the Optus breach last month, which affected millions of customers. | |||||||
Medibank | Cyber Attack | 100 | 5 | 5/2025 | MED718053025 | Link | |
Rankiteo Explanation : Attack threatening the organization's existenceDescription: Medibank experienced a high-profile cyberattack where sensitive customer data, including personal and financial information, was compromised. This attack exposed the personal information of customers, leading to significant reputational damage and potential legal consequences for the company. | |||||||
Medibank | Ransomware | 70 | 4 | 10/2022 | MED220191022 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: Medibank, the Australian health insurance business targeted by the ransomware attack, attakers accessed its customersโ data. Ransomware did not encrypt Medibank's systems, but thieves frequently steal data to blackmail their victims. They investigated the incident and took actions to protect of their customersโ data very seriously. | |||||||
Medibank | Ransomware | 100 | 5 | 11/2022 | MED23271122 | Link | |
Rankiteo Explanation : Attack threatening the organization's existenceDescription: Hackers managed to gain access to all of the Medibank's customersโ personal data. Medibank denied to pay ransom in hack that impacted 9.7 million current and former customers and some of their authorized representatives. The criminals accessed data including the name, date of birth, address, phone number and email address. The criminals are also believed to have accessed health claims data for 480,000 customers, including โcodes associated with diagnosis and procedures administered.โ |
Medibank Company Subsidiaries

At Medibank we are motivated by improving the health of all Australians and the health of our members. We are passionate about building a better health system that is centred on people, and sustainable in the long term. Medibankโs core business is the underwriting and distribution of private health insurance policies through our two brands, Medibank and ahm. We also provide a range of integrated healthcare services to our private health insurance policyholders, government, corporate and other retail customers. Medibankโs headquarters are in Melbourne, Victoria, with operations throughout Australia.
Access Data Using Our API

Get company history
.png)
Medibank Cyber Security News
Legal professional privilege in cybersecurity incident reports โ mere โincantationsโ are not sufficient
Medibank asserted that the reports it had commissioned from third party consultants and cybersecurity experts were subject to legal professional privilege.
Australiaโs Medibank Hack Puts 4 Million Customers at Risk
Medibank is the latest company in Australia to fall victim to a cyber attack after a month of massive data breaches.
Optus and Medibank Data Breach Cases Allege Cyber Security Failures
Optus and Medibank have been accused of cyber security failures in legal cases brought by Australian regulators following data breaches inย ...
Disentangling the purpose of forensic reports in a โrapidly evolvingโ cyber incident: Medibank privilege decision
Between 7 and 9 November 2022, Medibank confirmed that it would not pay any cyber ransom, that data of around 9.7 million current and formerย ...
Australia Imposes New Cyber Sanctions in Response to Medibank Private Cyberattack
Australia imposes new cyber sanctions on Russian entities behind the Medibank Private cyberattack, bolstering efforts to deter cybercrime.
Russian criminals sanctioned over Medibank hack
The Australian government has imposed new cyber sanctions against hosting platform ZServers and five Russian individuals who enabled aย ...
How Medibank allegedly ignored the warning signs in one of Australia's worst cybersecurity breaches
It says on around August 7, 2022, the IT contractor's personal computer was hacked by a "threat actor" who stole his Medibank username andย ...
Medibank told to hand over cyber attack reports
Medibank is set to be forced to hand investigative reports probing Australia's worst cyber attack to its customers who are suing the privateย ...
Medibank link emerges in multi-country action against ZServers
The federal government has linked overnight action taken against Russian service provider ZServers and five people connected to the hostingย ...

Medibank Similar Companies

State Farm Agent
At State Farmยฎ, our mission is to help people manage the risks of everyday life, recover from the unexpected, and realize their dreams. A career as a State Farmยฎ agent offers an incredible opportunity for motivated people to align themselves with a company that has earned the respect of its custome

USI Insurance Services
USI is one of the largest insurance brokerage and consulting firms in the world, delivering property and casualty, employee benefits, personal risk, program and retirement solutions to large risk management clients, middle market companies, smaller firms and individuals. Headquartered in Valhalla, N

Farmers Insurance
The companies comprising the Farmers Insurance Group of Companiesยฎ currently make up one of the country's largest insurers of vehicles, homes and small businesses, and provide a wide range of other specialty insurance and financial services products. In business since 1928, today at Farmersยฎ we pr

Liberty Mutual Suretyโข
Liberty Mutual is the largest provider of surety & guarantees in the U.S. and in the world*. With operations in the countries below, our underwriters live where you do, so they know your local market and what makes it unique. โขNorth America: United States, Canada, Mexico โขEurope & Asia Pacific:

HDFC ERGO General Insurance
HDFC ERGO General Insurance Company Limited was promoted by erstwhile Housing Development Finance Corporation Ltd. (HDFC), Indiaโs premier Housing Finance Institution and ERGO International AG, the primary insurance entity of Munich Re Group. Consequent to the implementation of the Scheme of Amalgam

Manulife
Manulife is a leading international financial services group that helps people make their decisions easier and lives better. With our global headquarters in Toronto, we operate as Manulife across our offices in Canada, Asia, and Europe, and primarily as John Hancock in the United States. We have mor

Frequently Asked Questions (FAQ) on Cybersecurity Incidents
Medibank CyberSecurity History Information
Total Incidents: According to Rankiteo, Medibank has faced 5 incidents in the past.
Incident Types: The types of cybersecurity incidents that have occurred include ['Ransomware', 'Cyber Attack', 'Breach'].
Total Financial Loss: The total financial loss from these incidents is estimated to be {total_financial_loss}.
Cybersecurity Posture: The company's overall cybersecurity posture is described as At Medibank we are motivated by improving the health of all Australians and the health of our members. We are passionate about building a better health system that is centred on people, and sustainable in the long term. Medibankโs core business is the underwriting and distribution of private health insurance policies through our two brands, Medibank and ahm. We also provide a range of integrated healthcare services to our private health insurance policyholders, government, corporate and other retail customers. Medibankโs headquarters are in Melbourne, Victoria, with operations throughout Australia..
Detection and Response: The company detects and responds to cybersecurity incidents through {description_of_detection_and_response_process}.
Incident Details

Incident 1: Ransomware Attack
Title: {Incident_Title}
Description: {Brief_description_of_the_incident}
Date Detected: {Detection_Date}
Date Publicly Disclosed: {Disclosure_Date}
Date Resolved: {Resolution_Date}
Type: {Type_of_Attack}
Attack Vector: {Attack_Vector}
Vulnerability Exploited: {Vulnerability}
Threat Actor: {Threat_Actor}
Motivation: {Motivation}

Incident 2: Data Breach
Title: {Incident_Title}
Description: {Brief_description_of_the_incident}
Date Detected: {Detection_Date}
Date Publicly Disclosed: {Disclosure_Date}
Date Resolved: {Resolution_Date}
Type: {Type_of_Attack}
Attack Vector: {Attack_Vector}
Vulnerability Exploited: {Vulnerability}
Threat Actor: {Threat_Actor}
Motivation: {Motivation}
Common Attack Types: The most common types of attacks the company has faced are ['Cyber Attack', 'Ransomware'].
Identification of Attack Vectors: The company identifies the attack vectors used in incidents through {description_of_identification_process}.
Impact of the Incidents

Incident 1: Ransomware Attack
Financial Loss: {Financial_Loss}
Data Compromised: {Data_Compromised}
Systems Affected: {Systems_Affected}
Downtime: {Downtime}
Operational Impact: {Operational_Impact}
Conversion Rate Impact: {Conversion_Rate_Impact}
Revenue Loss: {Revenue_Loss}
Customer Complaints: {Customer_Complaints}
Brand Reputation Impact: {Brand_Reputation_Impact}
Legal Liabilities: {Legal_Liabilities}
Identity Theft Risk: {Identity_Theft_Risk}
Payment Information Risk: {Payment_Information_Risk}

Incident 2: Data Breach
Financial Loss: {Financial_Loss}
Data Compromised: {Data_Compromised}
Systems Affected: {Systems_Affected}
Downtime: {Downtime}
Operational Impact: {Operational_Impact}
Conversion Rate Impact: {Conversion_Rate_Impact}
Revenue Loss: {Revenue_Loss}
Customer Complaints: {Customer_Complaints}
Brand Reputation Impact: {Brand_Reputation_Impact}
Legal Liabilities: {Legal_Liabilities}
Identity Theft Risk: {Identity_Theft_Risk}
Payment Information Risk: {Payment_Information_Risk}
Average Financial Loss: The average financial loss per incident is {average_financial_loss}.
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are {list_of_commonly_compromised_data_types}.

Incident 1: Ransomware Attack
Entity Name: {Entity_Name}
Entity Type: {Entity_Type}
Industry: {Industry}
Location: {Location}
Size: {Size}
Customers Affected: {Customers_Affected}

Incident 2: Data Breach
Entity Name: {Entity_Name}
Entity Type: {Entity_Type}
Industry: {Industry}
Location: {Location}
Size: {Size}
Customers Affected: {Customers_Affected}
Response to the Incidents

Incident 1: Ransomware Attack
Incident Response Plan Activated: {Yes/No}
Third Party Assistance: {Yes/No}
Law Enforcement Notified: {Yes/No}
Containment Measures: {Containment_Measures}
Remediation Measures: {Remediation_Measures}
Recovery Measures: {Recovery_Measures}
Communication Strategy: {Communication_Strategy}
Adaptive Behavioral WAF: {Adaptive_Behavioral_WAF}
On-Demand Scrubbing Services: {On_Demand_Scrubbing_Services}
Network Segmentation: {Network_Segmentation}
Enhanced Monitoring: {Enhanced_Monitoring}

Incident 2: Data Breach
Incident Response Plan Activated: {Yes/No}
Third Party Assistance: {Yes/No}
Law Enforcement Notified: {Yes/No}
Containment Measures: {Containment_Measures}
Remediation Measures: {Remediation_Measures}
Recovery Measures: {Recovery_Measures}
Communication Strategy: {Communication_Strategy}
Adaptive Behavioral WAF: {Adaptive_Behavioral_WAF}
On-Demand Scrubbing Services: {On_Demand_Scrubbing_Services}
Network Segmentation: {Network_Segmentation}
Enhanced Monitoring: {Enhanced_Monitoring}
Incident Response Plan: The company's incident response plan is described as {description_of_incident_response_plan}.
Third-Party Assistance: The company involves third-party assistance in incident response through {description_of_third_party_involvement}.
Data Breach Information

Incident 2: Data Breach
Type of Data Compromised: {Type_of_Data}
Number of Records Exposed: {Number_of_Records}
Sensitivity of Data: {Sensitivity_of_Data}
Data Exfiltration: {Yes/No}
Data Encryption: {Yes/No}
File Types Exposed: {File_Types}
Personally Identifiable Information: {Yes/No}
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: {description_of_prevention_measures}.
Handling of PII Incidents: The company handles incidents involving personally identifiable information (PII) through {description_of_handling_process}.
Ransomware Information

Incident 1: Ransomware Attack
Ransom Demanded: {Ransom_Amount}
Ransom Paid: {Ransom_Paid}
Ransomware Strain: {Ransomware_Strain}
Data Encryption: {Yes/No}
Data Exfiltration: {Yes/No}
Ransom Payment Policy: The company's policy on paying ransoms in ransomware incidents is described as {description_of_ransom_payment_policy}.
Data Recovery from Ransomware: The company recovers data encrypted by ransomware through {description_of_data_recovery_process}.
Regulatory Compliance

Incident 1: Ransomware Attack
Regulations Violated: {Regulations_Violated}
Fines Imposed: {Fines_Imposed}
Legal Actions: {Legal_Actions}
Regulatory Notifications: {Regulatory_Notifications}

Incident 2: Data Breach
Regulations Violated: {Regulations_Violated}
Fines Imposed: {Fines_Imposed}
Legal Actions: {Legal_Actions}
Regulatory Notifications: {Regulatory_Notifications}
Regulatory Frameworks: The company complies with the following regulatory frameworks regarding cybersecurity: {list_of_regulatory_frameworks}.
Ensuring Regulatory Compliance: The company ensures compliance with regulatory requirements through {description_of_compliance_measures}.
Lessons Learned and Recommendations

Incident 1: Ransomware Attack
Lessons Learned: {Lessons_Learned}

Incident 2: Data Breach
Lessons Learned: {Lessons_Learned}

Incident 1: Ransomware Attack
Recommendations: {Recommendations}

Incident 2: Data Breach
Recommendations: {Recommendations}
Key Lessons Learned: The key lessons learned from past incidents are {list_of_key_lessons_learned}.
Implemented Recommendations: The company has implemented the following recommendations to improve cybersecurity: {list_of_implemented_recommendations}.
References
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at {list_of_additional_resources}.
Investigation Status

Incident 1: Ransomware Attack
Investigation Status: {Investigation_Status}

Incident 2: Data Breach
Investigation Status: {Investigation_Status}
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through {description_of_communication_process}.
Stakeholder and Customer Advisories

Incident 1: Ransomware Attack
Stakeholder Advisories: {Stakeholder_Advisories}
Customer Advisories: {Customer_Advisories}

Incident 2: Data Breach
Stakeholder Advisories: {Stakeholder_Advisories}
Customer Advisories: {Customer_Advisories}
Advisories Provided: The company provides the following advisories to stakeholders and customers following an incident: {description_of_advisories_provided}.
Initial Access Broker

Incident 1: Ransomware Attack
Entry Point: {Entry_Point}
Reconnaissance Period: {Reconnaissance_Period}
Backdoors Established: {Backdoors_Established}
High Value Targets: {High_Value_Targets}
Data Sold on Dark Web: {Yes/No}

Incident 2: Data Breach
Entry Point: {Entry_Point}
Reconnaissance Period: {Reconnaissance_Period}
Backdoors Established: {Backdoors_Established}
High Value Targets: {High_Value_Targets}
Data Sold on Dark Web: {Yes/No}
Monitoring and Mitigation of Initial Access Brokers: The company monitors and mitigates the activities of initial access brokers through {description_of_monitoring_and_mitigation_measures}.
Post-Incident Analysis

Incident 1: Ransomware Attack
Root Causes: {Root_Causes}
Corrective Actions: {Corrective_Actions}

Incident 2: Data Breach
Root Causes: {Root_Causes}
Corrective Actions: {Corrective_Actions}
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as {description_of_post_incident_analysis_process}.
Corrective Actions Taken: The company has taken the following corrective actions based on post-incident analysis: {list_of_corrective_actions_taken}.
Additional Questions
General Information
Ransom Payment History: The company has {paid/not_paid} ransoms in the past.
Last Ransom Demanded: The amount of the last ransom demanded was {last_ransom_amount}.
Last Attacking Group: The attacking group in the last incident was {last_attacking_group}.
Incident Details
Most Recent Incident Detected: The most recent incident detected was on {most_recent_incident_detected_date}.
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on {most_recent_incident_publicly_disclosed_date}.
Most Recent Incident Resolved: The most recent incident resolved was on {most_recent_incident_resolved_date}.
Impact of the Incidents
Highest Financial Loss: The highest financial loss from an incident was {highest_financial_loss}.
Most Significant Data Compromised: The most significant data compromised in an incident was {most_significant_data_compromised}.
Most Significant System Affected: The most significant system affected in an incident was {most_significant_system_affected}.
Response to the Incidents
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was {third_party_assistance_in_most_recent_incident}.
Containment Measures in Most Recent Incident: The containment measures taken in the most recent incident were {containment_measures_in_most_recent_incident}.
Data Breach Information
Most Sensitive Data Compromised: The most sensitive data compromised in a breach was {most_sensitive_data_compromised}.
Number of Records Exposed: The number of records exposed in the most significant breach was {number_of_records_exposed}.
Ransomware Information
Highest Ransom Demanded: The highest ransom demanded in a ransomware incident was {highest_ransom_demanded}.
Highest Ransom Paid: The highest ransom paid in a ransomware incident was {highest_ransom_paid}.
Regulatory Compliance
Highest Fine Imposed: The highest fine imposed for a regulatory violation was {highest_fine_imposed}.
Most Significant Legal Action: The most significant legal action taken for a regulatory violation was {most_significant_legal_action}.
Lessons Learned and Recommendations
Most Significant Lesson Learned: The most significant lesson learned from past incidents was {most_significant_lesson_learned}.
Most Significant Recommendation Implemented: The most significant recommendation implemented to improve cybersecurity was {most_significant_recommendation_implemented}.
References
Most Recent Source: The most recent source of information about an incident is {most_recent_source}.
Most Recent URL for Additional Resources: The most recent URL for additional resources on cybersecurity best practices is {most_recent_url}.
Investigation Status
Current Status of Most Recent Investigation: The current status of the most recent investigation is {current_status_of_most_recent_investigation}.
Stakeholder and Customer Advisories
Most Recent Stakeholder Advisory: The most recent stakeholder advisory issued was {most_recent_stakeholder_advisory}.
Most Recent Customer Advisory: The most recent customer advisory issued was {most_recent_customer_advisory}.
Initial Access Broker
Most Recent Entry Point: The most recent entry point used by an initial access broker was {most_recent_entry_point}.
Most Recent Reconnaissance Period: The most recent reconnaissance period for an incident was {most_recent_reconnaissance_period}.
Post-Incident Analysis
Most Significant Root Cause: The most significant root cause identified in post-incident analysis was {most_significant_root_cause}.
Most Significant Corrective Action: The most significant corrective action taken based on post-incident analysis was {most_significant_corrective_action}.
What Do We Measure?
Every week, Rankiteo analyzes billions of signals to give organizations a sharper, faster view of emerging risks. With deeper, more actionable intelligence at their fingertips, security teams can outpace threat actors, respond instantly to Zero-Day attacks, and dramatically shrink their risk exposure window.
These are some of the factors we use to calculate the overall score:
Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.
Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.
Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.
Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
