Have I Been Pwned has added stolen data from the StreetEasy and Sephora data breaches to their search engine so that users can check if their information was exposed. StreetEasy was hit with a data breach in June 2016 that disclosed the information for close to 1 million users. The data was provided to HIBP by a source who requested it be attributed to “[email protected]”” The data for both breaches has been seen being sold and traded on online hacker forums.”
Source: https://www.bleepingcomputer.com/news/security/check-if-you-are-in-the-sephora-and-streeteasy-data-breaches/