> For the complete documentation index, see [llms.txt](https://help.nightfall.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.nightfall.ai/faqs/nightfall_data_types_classification.md).

# What types of data does Nightfall classify?

Learn the types of data that Nightfall can classify.

Nightfall classifies over 100+ types of sensitive data, including forms of personally identifiable data (PII), protected health information (PHI), payment card information (PCI), credentials & secrets, and more. For example, email addresses, credit card numbers, social security numbers, API keys, passwords, and many more. These data types support compliance regimes like HIPAA, GDPR, HIPAA, PCI-DSS. Likewise, Nightfall’s detectors apply to a broad variety of industries and geographies (countries in US, EMEA, APAC, etc.).

Nightfall also supports custom detectors, as well as features such as context rules & exclusion rules that enable you to further tune detectors to your specific business needs and increase accuracy. Contact us at <sales@nightfall.ai> to determine if Nightfall supports detectors that meet your needs.