Sweden Driver's License Number

Detects Sweden 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: se, 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\d{6}-?\d{4}\b

Corroborative evidence keywords

driver, licence, license, driving, DL, korkort, ID number, identification, ID card, permit, registration, certificate, field, column, row, entry, record, value, form, register (+21 more)

Proximity: 300 characters

Should match

1234561234 — 10-digit Swedish driver's license without hyphen
123456-1234 — Swedish driver's license with hyphen separator
987654-5678 — Another valid format with hyphen

Should not match

12345-1234 — Too few digits before hyphen (5 instead of 6)
123456-12345 — Too many digits after hyphen (5 instead of 4)
template example placeholder record identifier — Template/sample context should be excluded even when anchor words are present

Known false positives

Swedish personnummer (personal identity number) shares a similar format, making it difficult to distinguish between the two by pattern alone. Mitigation: Require corroborative evidence keywords specific to driver's license context within the proximity window.

References

Sweden driver's license number entity definition - Microsoft Learn