Breach Notification , Cybercrime , Cybercrime as-a-service

Insurance Broker Aon Discloses Cyberattack

Incident Revealed in Filing With US Securities and Exchange Commission
Insurance Broker Aon Discloses Cyberattack
Aon says there was no indication of a breach of any customer information. (Source: Shutterstock)

Global insurance broker Aon has disclosed in a filing with the U.S. Securities and Exchange Commission that the company suffered a cyber incident that it says affected a limited number of systems.

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"On February 25, 2022, Aon plc. identified a cyber incident impacting a limited number of systems. Promptly upon its identification of the incident, the company launched an investigation, and engaged the services of third-party advisors, incident response professionals, and counsel," the company says.

The multinational firm says there is currently no indication of a breach of any customer information or confidential corporate information.

Investigation Underway

Aon's 8-K filing says that it is in the early stages of assessing the incident. It say it does not expect the incident to have a material impact on its business, operations or financial condition.

A spokesperson for Aon did not immediately confirm if the incident was a ransomware attack, but directed Information Security Media Group to the SEC filing. Aon has not yet provided more details of the attack. The company only says that the attack occurred last week and affected a limited number of systems.

Aon is a global professional services company offering a broad spectrum of risk, retirement, cybersecurity consulting, wealth management products and healthcare solutions. The company generated around $12.2 billion revenue in 2021 and has more than 50,000 employees in 120 countries, according to its website.

An unnamed spokesperson for Aon reportedly told Security Week that the incident was not a ransomware attack, there was no encryption of files and the breach did not involve any other type of malware.

Sam Linford, vice president, Channel and MSSP, EMEA, at cybersecurity firm Deep Instinct, says: "Aon were able to limit the impact of the attack to a few systems due to acting quickly and having a response method in place. Attacks on the insurance industry can have a significant impact on both customers and employees due to the highly sensitive data they hold. Therefore, insurance organizations must ensure that they have a cybersecurity solution which can stop the possibility of their data being stolen."

Insurance Sector an Active Target

Last year, the insurance company CNA Financial Corp. acknowledged that a cyber incident it suffered in March 2021 had been a ransomware attack and that it had notified 75,000 individuals that their data may have been compromised (see: CNA Discloses Breach Related to March Ransomware Attack).

Personal information that may have been compromised during that incident included names, Social Security numbers and in some instances, health benefits information, CNA said in a formal notice on the incident. The majority of individuals being notified were current and former employees, contract workers and their dependents.

CNA reportedly paid a $40 million ransom after the ransomware attack.

In May 2021, Asia Assistance, a subsidiary of Paris-based multinational insurance company AXA, was hit by a ransomware attack that affected its IT operations in Thailand, Malaysia, Hong Kong and the Philippines (see: Ransomware Attack Hits Asian Unit of Insurer AXA).

Tokio Marine, a Japan-based property and casualty insurer said its Tokio Marine Insurance Singapore unit had been hit by a ransomware attack in August 2021 (see: Insurer Tokio Marine Hit by Ransomware).


About the Author

Prajeet Nair

Prajeet Nair

Principal Correspondent, ISMG

Nair is principal correspondent for Information Security Media Group's global news desk. He has previously worked at TechCircle, IDG, Times Group and other publications where he reported on developments in enterprise technology, digital transformation and other issues.




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