Microsoft admitted a security incident that exposed nearly 250 million “Customer Service and Support” records on the Internet due to a misconfigured server containing logs of conversations between its support team and customers. The logs contained records spanning from 2005 right through to December 2019. Microsoft said the database was redacted using automated tools to remove the personally identifiable information of most customers, except in some scenarios where the information was not the standard format. The leaked data could be abused by tech-support scammers to trick users into paying for non-existent problems by impersonating Microsoft support representatives.
Source: https://thehackernews.com/2020/01/microsoft-customer-support.html