Connect with us

Hi, what are you looking for?


Cyber Insurance

Insurance Broker Aon Investigating Cyber Incident

Global insurance broker Aon on Monday revealed that it’s investigating a cyber incident impacting some of its systems.

Global insurance broker Aon on Monday revealed that it’s investigating a cyber incident impacting some of its systems.

In a brief statement submitted to the U.S. Securities and Exchange Commission (SEC), Aon said it detected a cyber incident on February 25. The investigation conducted until the SEC was notified showed that only a “limited number of systems” were impacted.

“The incident has not had a significant impact on the Company’s operations,” Aon said.“Although the Company is in the early stages of assessing the incident, based on the information currently known, the Company does not expect the incident to have a material impact on its business, operations or financial condition.”

Aon provides risk, insurance, reinsurance, retirement, and health solutions. The company has roughly 50,000 employees across 120 countries and an annual revenue of more than $10 billion.

Many of these types of disclosures are triggered by ransomware attacks, but that does not appear to be the case.

Aon has not shared any additional details about the incident in its SEC filing, but the company told SecurityWeek that this was not a ransomware attack — there was no encryption of files and the breach did not involve any other type of malware. At this stage in its investigation, the company has no concrete evidence of specific data being impacted.

“The cyberattack on AON is a warning sign to every insurance company that they are a popular target to threat actors. The valuable data held by insurance companies is an attractive target for cyber criminals, which means that the industry has to make sure that they implement solutions which prevents data from being breached,” Sam Linford, VP Channel & MSSP EMEA at Deep Instinct, said via email.

Advertisement. Scroll to continue reading.

“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 organisations must ensure that they have a cybersecurity solution which can stop the possibility of their data being stolen.”

Several major insurance companies disclosed cybersecurity incidents last year, including AXA, CNA, and Pan-American Life.

*updated with information that the incident did not involve ransomware

Related: Law Enforcement Blowback, Cyber Insurance Renewals Powering Anti-Ransomware Success

Related: Court Awards Merck $1.4B Insurance Claim Over NotPetya Cyberattack

Related: The Wild West of the Nascent Cyber Insurance Industry

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

SecurityWeek’s Threat Detection and Incident Response Summit brings together security practitioners from around the world to share war stories on breaches, APT attacks and threat intelligence.


Securityweek’s CISO Forum will address issues and challenges that are top of mind for today’s security leaders and what the future looks like as chief defenders of the enterprise.


Expert Insights

Related Content


The changing nature of what we still generally call ransomware will continue through 2023, driven by three primary conditions.


Luxury retailer Neiman Marcus Group informed some customers last week that their online accounts had been breached by hackers.


As it evolves, web3 will contain and increase all the security issues of web2 – and perhaps add a few more.


A recently disclosed vBulletin vulnerability, which had a zero-day status for roughly two days last week, was exploited in a hacker attack targeting the...


Satellite TV giant Dish Network confirmed that a recent outage was the result of a cyberattack and admitted that data was stolen.


Zendesk is informing customers about a data breach that started with an SMS phishing campaign targeting the company’s employees.

Artificial Intelligence

The release of OpenAI’s ChatGPT in late 2022 has demonstrated the potential of AI for both good and bad.

Data Breaches

LastPass DevOp engineer's home computer hacked and implanted with keylogging malware as part of a sustained cyberattack that exfiltrated corporate data from the cloud...