Cyber risk analytics provider CyberCube has released a preliminary insured loss estimate for the recent Amazon Web Services (AWS) outage, projecting a range between $38 million and $581 million.
The company said the incident, which it has dubbed "Amazonk," is expected to have a low to moderate impact on cyber insurers, with most losses likely to fall near the lower end of the range.
CyberCube said the outage, which occurred on October 20, affected a wide array of dependent digital platforms, including Snapchat, Fortnite, Roblox, Atlassian, Coinbase, Venmo, and Ring. Following the disruption, the company activated its Cyber Aggregation Event Response Service (CAERS) to assess potential industry-wide exposure.
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In its second Security Incident Report (SIR) on the event, CyberCube estimated that the outage impacted more than 2,000 large organizations and around 70,000 organizations in total. The analysis drew on CyberCube’s Portfolio Manager Version 6, a tool that models potential losses arising from systemic cyber events such as cloud service interruptions.
CyberCube said industries most reliant on continuous availability, including technology and financial services, were likely the most affected. Although the AWS "us-east-1" region primarily serves US-based customers, the report noted that the effects extended globally due to its central role in the company's infrastructure.
The firm said AWS is expected to reimburse affected companies for downtime, which may limit insured losses and discourage litigation. Given the brief duration of the outage, CyberCube said many companies might choose not to file claims, a factor contributing to its lower-end loss projection.
CyberCube added that the incident underscores how well insurers are now positioned to manage cloud-related systemic risk. The company said such events are anticipated within cyber models and are already reflected in underwriting and pricing assumptions.
The report follows growing attention to the insurance implications of major technology outages, as cloud dependency continues to deepen across industries. CyberCube’s modeling suggests that while such incidents can cause widespread disruption, they remain within the industry’s capacity to absorb financially.
