For pre-built Nightfall Detectors, Nightfall supports different languages for certain detection algorithms. For sensitive data types that are numeric/alphanumeric - such as card numbers, passport numbers, drivers licenses, etc. - Nightfall trains these detectors with context that corresponds to the language in that geographical area. For example, for our pre-built Brazilian CPF detector (a National Brazilian Tax Number) our detector is trained on context in English and in Portuguese (examples include phrases like “pessoas singulares registro número”).