German Driver's License Number
Detects German driver's license number patterns. This pattern is based on a Microsoft Purview built-in sensitive information type. Users already running Purview may prefer to enable the built-in SIT directly, or use this version as a starting point for customisation.
- Type
- regex
- Engine
- universal
- Confidence
- medium
- Confidence justification
- Medium confidence: pattern has structural constraints but corroborative keywords are recommended to reduce false positive rates. Added context gating and exclusion rules improve precision and reduce incidental matches.
- Detection quality
- Verified
- Jurisdictions
- de, eu
- Regulations
- BDSG, CNIL / LIL, GDPR
- Frameworks
- ISO 27001, ISO 27701
- Data categories
- pii, government-id
- Scope
- narrow
- Risk rating
- 6
- Platform compatibility
- Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Compatible, Netskope: Compatible
Pattern
\b[A-Z0-9]{4}\d{5}[A-Z0-9]\d[A-Z]\bCorroborative evidence keywords
driver, licence, license, driving, DL, Fuhrerschein, ID number, identification, ID card, permit, registration, certificate, field, column, row, entry, record, value, form, register (+21 more)
Proximity: 300 characters
Should match
AB0112345X6Y— Standard German driver's license format (4 alnum + 5 digits + alnum + digit + letter)M9X254321A2B— Another valid German license format with mixed alphanumerics00Z898765H1C— Valid format with numeric prefix characters
Should not match
B072RRE2E51— Too short — missing final letter123456789012— All digits — missing required letter positionstemplate example placeholder record identifier— Template/sample context should be excluded even when anchor words are present
Known false positives
- Generic alphanumeric sequences matching the driver's license format appearing in unrelated contexts. Mitigation: Require corroborative evidence keywords within the proximity window to confirm driver's license context.