The private data of hundreds of millions of Brazilians were publicly accessible to threat actors, putting many people at risk.
Researchers revealed a publicly accessible Elasticsearch instance, a commonly used tool for the search, analysis, and visualization of large volumes of data, which contained a large amount of private data belonging to Brazilian individuals.
The leaked data contained full names, dates of birth, sex, and Cadastro de Pessoas Físicas (CPF) numbers (Brazilian taxpayer ID).
Over 223 million records were leaked, and it is unknown for how long.
Read more about it here.