Sensitivity Labels & Default sharing link type

You can configure the default sharing link type for SharePoint and One Drive for Business in the SharePoint Admin Center:

With PowerShell you now can associate a default sharing link type to a sensitivity label.
Example:
If you have a label called "TOP SECRET". You could already configure this label to stop external sharing on sites associated with this label:

Now you can fine tune even this and specify the default sharing link type usingt PowerShell:

• Set-Label -Identity 'TOP SECRET' -AdvancedSettings @{DefaultSharingScope ="SpecificPeople"}

• Set-Label -Identity 'TOP SECRET' -AdvancedSettings @{DefaultShareLinkPermission ="Edit"}

This feature is now (06/08/2021) in public preview.

Customize Built-In Classifiers

As part of data classification in Microsoft 365 compliance center you can now customize built-in classifiers (sensitive information types) to meet organization's needs.

This update includes:

• Ability to edit custom dictionaries

• New validation functions like for example…:
• Custom checksum validator
• Date validator
• Luhn check (The Luhn algorithm will detect any single-digit error, as well as almost all transpositions of adjacent digits.)
• Etc.
• Ability to define Proximity at pattern and element level

Rollout will begin mid-June and is expected to be complete by mid-July 2021.

For all of you who wants to start with custom sensitive information types; this feature is already here: https://docs.microsoft.com/en-us/microsoft-365/compliance/create-a-custom-sensitive-information-type