O365 Systems must not allow the re-use of the last 10 Passwords?

%3CLINGO-SUB%20id%3D%22lingo-sub-721094%22%20slang%3D%22en-US%22%3ERe%3A%20O365%20Systems%20must%20not%20allow%20the%20re-use%20of%20the%20last%2010%20Passwords%3F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-721094%22%20slang%3D%22en-US%22%3EAFAIK%2C%20this%20cant%20be%20set!%20By%20default%20the%20same%20can%E2%80%99t%20be%20used%20during%20a%20password%20change%20but%20there%E2%80%99s%20no%20check%20against%20the%20history!%3CBR%20%2F%3EI%E2%80%99d%20recommend%20you%20read%20this%20documentation%20as%20well%3A%3CBR%20%2F%3E%3CBR%20%2F%3E%3CA%20href%3D%22https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Foffice365%2Fadmin%2Fmisc%2Fpassword-policy-recommendations%3Fview%3Do365-worldwide%22%20rel%3D%22noopener%20noreferrer%20noopener%20noreferrer%20noopener%20noreferrer%20noopener%20noreferrer%20noopener%20noreferrer%22%20target%3D%22_blank%22%3Ehttps%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Foffice365%2Fadmin%2Fmisc%2Fpassword-policy-recommendations%3Fview%3Do365-worldwide%3C%2FA%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-721066%22%20slang%3D%22en-US%22%3EO365%20Systems%20must%20not%20allow%20the%20re-use%20of%20the%20last%2010%20Passwords%3F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-721066%22%20slang%3D%22en-US%22%3E%3CP%3EO365%20Systems%20must%20not%20allow%20the%20re-use%20of%20the%20last%2010%20Passwords.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3Ewhere%20to%20set%20this%3F%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-721066%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EAdmin%3C%2FLINGO-LABEL%3E%3CLINGO-LABEL%3EOffice%20365%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E%3CLINGO-SUB%20id%3D%22lingo-sub-721134%22%20slang%3D%22en-US%22%3ERe%3A%20O365%20Systems%20must%20not%20allow%20the%20re-use%20of%20the%20last%2010%20Passwords%3F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-721134%22%20slang%3D%22en-US%22%3EIf%20you%20use%20AAD%20Connect%20to%20sync%20your%20users%20from%20on-premises%20Active%20Directory%20to%20Office%20365%2C%20you%20would%20be%20able%20to%20enforce%20this%20using%20on-premises%20AD%20-%20because%20password%20changes%20are%20managed%20there.%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-721153%22%20slang%3D%22en-US%22%3ERe%3A%20O365%20Systems%20must%20not%20allow%20the%20re-use%20of%20the%20last%2010%20Passwords%3F%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-721153%22%20slang%3D%22en-US%22%3EYeah%2C%20keep%20in%20mind%20most%20of%20my%20answer%20regarding%20passwords%20in%20your%20posts%20are%20referring%20to%20cloud%20only!%3C%2FLINGO-BODY%3E
Highlighted
Super Contributor

O365 Systems must not allow the re-use of the last 10 Passwords.

 

where to set this?

3 Replies
Highlighted
AFAIK, this cant be set! By default the same can’t be used during a password change but there’s no check against the history!
I’d recommend you read this documentation as well:

https://docs.microsoft.com/en-us/office365/admin/misc/password-policy-recommendations?view=o365-worl...
Highlighted
If you use AAD Connect to sync your users from on-premises Active Directory to Office 365, you would be able to enforce this using on-premises AD - because password changes are managed there.
Highlighted
Yeah, keep in mind most of my answer regarding passwords in your posts are referring to cloud only!