http://y7yea4pmqqtznb33qiugvysyn2bob5v62e4pvoadoibrwkq3tsddjeyd.onion/ps/glossary
Most often this refers to data—including passwords, phone numbers, social security numbers, and more—being taken from a provider of a service, like an online store, hospital, bank, or streaming service. A data breach can also refer to data exposures where information isn’t properly secured (like data stored online without a password).