Data leakage via misconfigured Amazon storage buckets struck twice in the past few weeks. In July, almost 14,000 documents detailing patient social security numbers and medical data such as mental illness or cancer were exposed in a healthcare vendor s Amazon S3 bucket owned by Medico. In weeks later, the Democratic Senatorial Campaign Committee leaked over 6 million email addresses when a file name EmailExcludeClinton.csv became available. The most sensitive data was a 145MB file that contained over 6,235,397 lines, or 6.2 million.
Source: https://threatpost.com/democrats-and-doctors-behind-latest-wave-of-leaked-data/147010/