Microsoft Purview compliance portal: Updates to Sensitive Information Types (SITs) definitions

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MC522570, Microsoft 365 Suite, Microsoft 365 Experts

From Microsoft Corporation
Technical Bulletin MC522570 · Published Mar 2, 2023

Message Summary

In our continued efforts to be in line with latest published definitions, and to improve the accuracy of out-of-the box sensitive information types (SIT), we have updated the definition of 4 existing SITs. 

When this will happen:

Rollout will begin in late February and is expected to be complete by mid-May – see table below for expected timing on each SIT update.

How this will affect your organization:

These improvements will roll out to the following existing SITs: 

SIT name Changes Commercial cloud availability Government cloud availability
France CNI Existing definition:
 – Twelve digitsAdditional patterns we will look for:
– Nine characters (Mix of letters and digits)
– Twelve characters (Mix of letters and digits)
Reference
End of February End of March
U.S. ITIN Existing Definition (Nine digits):
 – the digit “9”
 – two digits
 – a space or dash (optional)
 – a “7” or “8”
 – a digit
 – a pace, or dash (optional)
 –  four digitsNew Definition (Nine digits):
– the digit “9”
– two digits
– a space or dash (optional)
– two digits “50” to “65”, “70” to “88”, “90” to “92” and “94” to “99” for the fourth and fifth digits
– a space, or dash (optional)
– four digits
Reference
End of February End of March
South Korea RRN Existing Definition (Thirteen digits):
 – six digits indicating valid date of birth YYMMDD
 – a hyphen
 – one digit determined by the century and gender
 – four-digit region-of-birth code
 – one digit used to differentiate people for whom the preceding numbers are identical
 – a check digitNew pattern (Thirteen digits without checksum):
– six digits indicating valid date of birth YYMMDD
– a hyphen
– seven digits
Reference
Mid-April Mid-May
Indonesia KTP Existing Definition (Sixteen digits):
 – Two-digit province code
 – A period (optional)
 – Two-digit regency or city code
 – Two-digit subdistrict code
 – A period (optional)
 – Six digits indicating date of birth on the format DDMMYY
 – A period (optional)
 – Four digitsNew pattern (Sixteen digits):
– Two digits indicating province code.
– Four digits
– Six digits indicating date of birth on the format DDMMYY.
– Four digits
Mid-April Mid-May

What you need to do to prepare:

No action is required to prepare for this update. Your existing policies (including DLP policies) need not be changed; you may wish to update internal documentation as appropriate.

Get started with sensitive information types in the Microsoft Purview compliance portal: 

Learn more: Sensitive information type entity definitions 

Additional information

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