Commands › Exchange Online

Set-InformationBarrierPolicy

Exchange Online ExchangeOnlineManagement Set-*

For more information, see Security & Compliance PowerShell. Use the Set-InformationBarrierPolicy cmdlet to modify information barrier policies in the Microsoft Purview compliance portal.

Quick start script

# Set-InformationBarrierPolicy — quick start (serv365.ai)
# 1. Connect (app-only shown; interactive: omit the certificate parameters)
Connect-ExchangeOnline -CertificateThumbprint $thumb -AppId $appId -Organization $org

# 2. Capture the current state first — you cannot roll back what you never recorded
$before = Get-InformationBarrierPolicy
$before | Format-List

# 3. Make the change (dry run first)
Set-InformationBarrierPolicy -Identity <PolicyIdParameter> -WhatIf
Set-InformationBarrierPolicy -Identity <PolicyIdParameter>

# 4. Verify and diff
$after = Get-InformationBarrierPolicy
Compare-Object ($before | Out-String) ($after | Out-String)

Syntax — 3 parameter sets

OrganizationSegmentsAllowed

Set-InformationBarrierPolicy -Identity <PolicyIdParameter>
 [-SegmentsAllowed <MultiValuedProperty>]
 [-Comment <String>]
 [-Confirm]
 [-ModerationAllowed <Boolean>]
 [-Force]
 [-State <EopInformationBarrierPolicyState>]
 [-WhatIf]
 [<CommonParameters>]

OrganizationSegmentAllowedFilter

Set-InformationBarrierPolicy -Identity <PolicyIdParameter>
 [-SegmentAllowedFilter <String>]
 [-Comment <String>]
 [-Confirm]
 [-Force]
 [-ModerationAllowed <Boolean>]
 [-State <EopInformationBarrierPolicyState>]
 [-WhatIf]
 [<CommonParameters>]

OrganizationSegmentsBlocked

Set-InformationBarrierPolicy -Identity <PolicyIdParameter>
 [-SegmentsBlocked <MultiValuedProperty>]
 [-Comment <String>]
 [-Confirm]
 [-Force]
 [-ModerationAllowed <Boolean>]
 [-State <EopInformationBarrierPolicyState>]
 [-WhatIf]
 [<CommonParameters>]

Parameters (10)

Parameter	Type	Required	What it controls
-Identity	PolicyIdParameter	yes	The Identity parameter specifies the information barrier policy that you want to modify. You can use any value that uniquely identifies the policy. For example:
-Comment	String		The Comment parameter specifies an optional comment. If you specify a value that contains spaces, enclose the value in quotation marks ("), for example: "This is an admin note".
-Confirm	SwitchParameter		This parameter is reserved for internal Microsoft use.
-Force	SwitchParameter		The Force switch hides warning or confirmation messages. You don't need to specify a value with this switch.
-ModerationAllowed	Boolean		{{ Fill ModerationAllowed Description }}
-SegmentsAllowed	MultiValuedProperty		The SegmentsAllowed parameter specifies the segments that are allowed to communicate with the segment in this policy (users defined by the AssignedSegment parameter). Only these specified segments can communicate...
-SegmentAllowedFilter	String		This parameter is reserved for internal Microsoft use.
-SegmentsBlocked	MultiValuedProperty		The SegmentsBlocked parameter specifies the segments that aren't allowed to communicate with the segment in this policy (users defined by the AssignedSegment parameter). You can specify multiple segments separated by...
-State	EopInformationBarrierPolicyState		The State parameter specifies whether the information barrier policy is active or inactive. Valid values are:
-WhatIf	SwitchParameter		The WhatIf switch doesn't work in Security & Compliance PowerShell.

Reference facts derived from Microsoft documentation, © Microsoft, licensed CC BY 4.0; restructured with original guidance by serv365.ai.