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, data record, database record, record set, data extract, data export, database table, spreadsheet, data registry (+15 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.