AWS Outage Loss Estimates Range from $38M to $581M as Cyber Insurers Face Moderate Impact
A recent outage by leading cloud services platform Amazon Web Services is expected to generate cyber insurance losses between $38 million and $581 million, according to analysis by CyberCube.
Cyber insurers face only low-to-mid single digit loss ratio impacts from the Oct. 20 event, which disrupted operations for approximately 70,000 organizations globally, according to the company’s Security Incident Report.
Widespread Disruption Affects Thousands of Organizations
The AWS outage, dubbed “Amazonk” by CyberCube, created ripple effects across the digital ecosystem, impacting more than 2,000 large enterprises and nearly 70,000 organizations in total. Major platforms experiencing disruptions included social media services like Snapchat, gaming platforms such as Fortnite and Roblox, business tools from Atlassian, and financial technology applications including Coinbase and Venmo. Smart home services like Ring also faced interruptions during the incident, according to the report.
“This AWS outage underscores systemic cloud services provider concentration risk. With disruptions extending 15 to 16 hours and most waiting periods in the 8 to 12-hour range, this outage could represent a moderate cyber (re)insurance event,” CyberCube said in a blog post about the event.
While AWS’s us-east-1 region, served from Northern Virginia, hosts primarily U.S.-based customers, the outage’s effects extended internationally to companies in the United Kingdom, Europe and other regions due to the critical infrastructure role this particular AWS region plays in the company’s global cloud architecture.
High-Availability Industries Bear Greatest Impact
Technology and financial services companies experienced the most significant disruptions from the outage, as these sectors depend heavily on continuous cloud service availability from AWS, according to CyberCube.
Most potential insured loss scenarios cluster toward the lower end of CyberCube’s estimated range, with several factors contributing to this outlook. The relatively short duration of the outage limits potential claims, and AWS is expected to provide reimbursements to affected companies as a means of avoiding litigation. Additionally, many organizations may determine that pursuing claims for brief service interruptions does not justify the administrative effort involved.
Insurance Industry Demonstrates Preparedness for Cloud Events
Despite initial concerns about the scale of AWS’s reach and the number of dependent organizations, the insurance industry’s response demonstrates its readiness for such scenarios, according to CyberCube.
“Although initial headlines about Amazonk focused on the size and scale of AWS and the sheer number of firms reliant on it, one of the key takeaways from this event should be the levelheadedness with which the insurance industry is able to respond to it. This type of event is something that is modeled, priced for, and underwritten, and is well within insurers’ expectations,” the company said.
View the report here. &

