A Misused Microsoft Tool Leaked Data from 47 Organizations

New research shows that misconfigurations of a widely used web tool have led to the leaking of tens of millions of data records.

Microsoft’s Power Apps, a popular development platform, allows organizations to quickly create web apps, replete with public facing websites and related backend data management. A lot of governments have used Power Apps to swiftly stand up covid-19 contact tracing interfaces, for instance.

However, incorrect configurations of the product can leave large troves of data publicly exposed to the web—which is exactly what has been happening.

Researchers with cybersecurity firm UpGuard recently discovered that as many as 47 different entities—including governments, large companies, and Microsoft itself—had misconfigured their Power Apps to leave data exposed.

The list includes some very large institutions, including the state governments of Maryland and Indiana and public agencies for New York City, such as the MTA. Large private companies, including American Airlines and transportation and logistics firm J.B. Hunt, have also suffered leaks.

UpGuard researchers write that the troves of leaked data has included a lot of sensitive stuff, including “personal information used for COVID-19 contact tracing, COVID-19 vaccination appointments, social security numbers for job applicants, employee IDs, and millions of names and email addresses.”


Following UpGuard’s disclosures, Microsoft has since shifted permissions and default settings related to Power Apps to make the product more secure.

Source: A Misused Microsoft Tool Leaked Data from 47 Organizations

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