Audience
Anyone checking whether an email address has appeared in a data breach; security and IT teams and domain owners monitoring their organization's exposure; and OSINT researchers and developers using breach data through an API.
About XposedOrNot
XposedOrNot is a web-based data-breach lookup and monitoring service for individuals, domain owners, and security teams. Users can search an email address to see the public breaches associated with it, including breach dates and exposed data types, and review breach records in a searchable catalog. Optional alerts notify users when an address appears in a newly indexed breach. Organizations can verify control of a domain and then review aggregated exposure, monitor new breaches, and receive email alerts. The service also provides exposure analytics, a free REST API with public keyless endpoints and rate limits, official SDKs, and integrations for security and investigation tools such as Microsoft Sentinel, Splunk, Wazuh, Maltego, MISP, TheHive/Cortex, and an MCP server. The website, API, and SDKs are open source; higher-volume commercial API plans are available separately.