A former Seattle technology company software engineer was arrested for allegedly hacking into Capital One's data stored on a cloud-computing company's server, resulting in the theft of personal and financial data of approximately 100 million individuals in the US. The intrusion occurred through a misconfigured web application firewall that enabled access to the data. The stolen data included credit card applications, Social Security numbers, and bank account numbers. The hack was allegedly carried out by exploiting a vulnerability that allowed the hacker to assume an IAM role with access to an S3 bucket.