https://www.cnet.com/news/exactis-340-million-people-may-have-been-exposed-in-bigger-breach-than-equifax/ :
Florida-based marketing and data aggregation firm Exactis exposed a database containing nearly 340 million individual records on a publicly accessible server, Wired reported. Earlier this month, security researcher Vinny Troia found that nearly 2 terabytes of data was exposed, which seems to include personal information on hundreds of millions of US adults and millions of businesses, the report said.

"It seems like this is a database with pretty much every US citizen in it," Troia told Wired.

(...)

The data leak is noteworthy not only for its breadth, but also for the depth of information the records have on people. Every record reportedly has entries that include more than 400 variables on characteristics like whether the person smokes, what their religion is and whether they have dogs or cats. But Wired noted that in some instances, the information is inaccurate or outdated.