Professional services and insurance giant AON has suffered a cyberattack that impacted a “limited” number of systems.
AON is a multinational professional services firm offering a wide array of solutions, including business insurance, reinsurance, cybersecurity consulting, risk solutions, healthcare insurance, and wealth management products.
AON generated $12.2 billion of revenue in 2021 and has approximately 50,000 employees spread throughout 120 countries.
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AON suffers a weekend cyberattack
In an 8-K form filed with the Securities and Exchange Commission, AON has disclosed that they suffered a cyberattack on February 25th, 2022.
AON has not provided any details of the attack other than that it occurred this past Friday and affected a limited number of systems.
“On February 25, 2022, Aon plc (the “Company”) 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 incident has not had a significant impact on the Company’s operations,” reads the Form 8-K filed by AON.
“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.”
In addition to being a insurance broker, AON is also a leading reinsurance company, meaning that they insure the insurance companies.
BleepingComputer has been told by a source in the reinsurance industry that it is common to receive data dumps of other insurers’ clients when underwriting a reinsurance policy.
This makes AON an attractive target for threat actors who commonly steal corporate data during cyberattacks.
In an interview with the REvil ransomware gang, the threat actors said that insurers are “one of the tastiest morsels” as they provide lists of possible targets more likely to pay a ransom as they have cyber insurance policies.
Insurance giant CNA was targeted in a ransomware attack in 2021 by the Evil Corp cybercrime syndicate. It has been reported they paid a $40 million ransom to receive a decryptor and prevent their stolen data from being leaked.
BleepingComputer contacted AON with further questions about the attack but has not heard back at this time.
Correction 2/28/22: Updated article to clarify that AON is an insurance broker.
Source: www.bleepingcomputer.com