Microsoft deprecates password payload in MPR notifications starting in Windows 11 24H2


  • Staff
FeatureDetails and mitigationDeprecation announced
NPLogonNotify and NPPasswordChangeNotify APIsStarting in Windows 11, version 24H2, the inclusion of password payload in MPR notifications is set to disabled by default through group policy in NPLogonNotify and NPPasswordChangeNotify APIs. The APIs may be removed in a future release. The primary reason for disabling this feature is to enhance security. When enabled, these APIs allow the caller to retrieve a users password, presenting potential risks for password exposure and harvesting by malicious users. To include password payload in MPR notifications, set the EnableMPRNotifications policy to enabled.March 2024


 Source:

learn.microsoft.com

Deprecated features in the Windows client - What's new in Windows

Review the list of features that Microsoft is no longer actively developing in Windows 10 and Windows 11.
learn.microsoft.com
 

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Since Microsoft likes to use initialisms without explaining them, the Multiple Provider Router (MPR) is the component that handles communication betweek Windows and the various network providers that are installed. Network providers are libraries (DLLs) that allow communication to other types of networks. These network providers can also act as credential managers, so they can receive a copy of the user's credentials. Slipping a rogue network provider (e.g., NPPSpy) into the mix could leak your credentials.
 

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  • OS
    Windows 11 Pro 23H2 [rev. 3447]
    Computer type
    PC/Desktop
    Manufacturer/Model
    Intel NUC12WSHi7
    CPU
    12th Gen Intel Core i7-1260P, 2100 MHz
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    Intel Iris Xe
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    Keyboard
    CODE 104-Key Mechanical Keyboard with Cherry MX Clears
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    Linux Mint 21.2 (Cinnamon)
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    Intel NUC8i5BEH
    CPU
    Intel Core i5-8259U CPU @ 2.30GHz
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    32 GB
    Graphics card(s)
    Iris Plus 655
    Keyboard
    CODE 104-Key Mechanical Keyboard - Cherry MX Clear
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