Set-DlpKeywordDictionary

Module:

ExchangePowerShell

Applies to:

Security & Compliance

This cmdlet is available only in Security & Compliance PowerShell. For more information, see Security & Compliance PowerShell.

Use the Set-DlpKeywordDictionary cmdlet to modify data loss prevention (DLP) keyword dictionaries in the Microsoft Purview compliance portal.

For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax.

Syntax

Set-DlpKeywordDictionary
   [-Identity] <SensitiveInformationTypeIdParameter>
   [-Confirm]
   [-Description <String>]
   [-DoNotPersistKeywords]
   [-FileData <Byte[]>]
   [-Name <String>]
   [-WhatIf]
   [<CommonParameters>]

Description

To use this cmdlet in Security & Compliance PowerShell, you need to be assigned permissions. For more information, see Permissions in the Microsoft Purview compliance portal.

Examples

Example 1

$Keywords = "Aarskog's syndrome, Abandonment, Abasia, Abderhalden-Kaufmann-Lignac, Abdominalgia, Abduction contracture, Abetalipo proteinemia, Abiotrophy, Ablatio, ablation, Ablepharia, Abocclusion, Abolition, Aborter, Abortion, Abortus, Aboulomania, Abrami's disease, Abramo"

$EncodedKeywords = [System.Text.Encoding]::Unicode.GetBytes($keywords)

Set-DlpKeywordDictionary -Identity "Diseases" -FileData $EncodedKeywords

This example replaces the existing terms in the DLP keyword dictionary named Diseases with the specified values.

Example 2

$Dictionary = Get-DlpKeywordDictionary -Name "Diseases"

$Terms = $Dictionary.KeywordDictionary.split(',').trim()

$Terms += "Achylia","Acidemia","Acidocytopenia","Acidocytosis","Acidopenia","Acidosis","Aciduria","Acladiosis","Aclasis"

$Keywords = $Terms -Join ", "

$EncodedKeywords = [System.Text.Encoding]::Unicode.GetBytes($Keywords)

Set-DlpKeywordDictionary -Identity "Diseases" -FileData $EncodedKeywords

This example adds the specified terms to the DLP keyword dictionary named Diseases without affecting other existing terms.

Example 3

$Dictionary = Get-DlpKeywordDictionary -Name "Diseases"

$Terms = $Dictionary.KeywordDictionary.split(',').trim()

$TermsToRemove = @('abandonment', 'ablatio')

$UpdatedTerms = $Terms | Where-Object {$_ -NotIn $TermsToRemove}

$Keywords = $UpdatedTerms -Join ", "

$EncodedKeywords = [System.Text.Encoding]::Unicode.GetBytes($Keywords)

Set-DlpKeywordDictionary -Identity "Diseases" -FileData $EncodedKeywords

This example removes the specified terms from the DLP keyword dictionary named Diseases without affecting other existing terms.

Example 4

$Dictionary = Get-DlpKeywordDictionary -Name "Inappropriate Language"

$Terms = $Dictionary.KeywordDictionary.split(',').trim()

Set-Content $Terms -Path "C:\My Documents\InappropriateTerms.txt"

$UpdatedTerms = Get-Content -Path "C:\My Documents\InappropriateTerms.txt"

$Keywords = $UpdatedTerms -Join ", "

$EncodedKeywords = [System.Text.Encoding]::Unicode.GetBytes($Keywords)

Set-DlpKeywordDictionary -Identity "Inappropriate Language" -FileData $EncodedKeywords

The first three commands export the terms from the existing keyword dictionary named Inappropriate Language to the file C:\My Documents\InappropriateTerms.txt, where each term is on a separate line.

After you use Notepad to modify the terms and save the file, the last four commands use the file to replace the terms in the keyword dictionary.

Parameters

-Confirm

The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on if the cmdlet requires confirmation before proceeding.

• Destructive cmdlets (for example, Remove-* cmdlets) have a built-in pause that forces you to acknowledge the command before proceeding. For these cmdlets, you can skip the confirmation prompt by using this exact syntax: -Confirm:$false.
• Most other cmdlets (for example, New-* and Set-* cmdlets) don't have a built-in pause. For these cmdlets, specifying the Confirm switch without a value introduces a pause that forces you acknowledge the command before proceeding.

Type:	SwitchParameter
Aliases:	cf
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Security & Compliance

-Description

The Description parameter specifies descriptive text for the DLP keyword dictionary. If the value contains spaces, enclose the value in quotation marks.

Type:	String
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Security & Compliance

-DoNotPersistKeywords

{{ Fill DoNotPersistKeywords Description }}

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Security & Compliance

-FileData

The FileData parameter specifies the terms that are used in the DLP keyword dictionary. This parameter requires a comma-separated list of values that's binary encoded in UTF-16. For more information, see the examples in this topic.

The maximum file size is up to 1 MB of terms after compression. The organization limit for all dictionaries is also 1 MB after compression.

Type:	Byte[]
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Security & Compliance

-Identity

The Identity parameter specifies the name of the DLP keyword dictionary that you want to modify. If the value contains spaces, enclose the value in quotation marks.

Type:	SensitiveInformationTypeIdParameter
Position:	1
Default value:	None
Required:	True
Accept pipeline input:	True
Accept wildcard characters:	False
Applies to:	Security & Compliance

-Name

The Name parameter specifies a unique name for the DLP keyword dictionary. If the value contains spaces, enclose the value in quotation marks.

Type:	String
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Security & Compliance

-WhatIf

The WhatIf switch doesn't work in Security & Compliance PowerShell.

Type:	SwitchParameter
Aliases:	wi
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Security & Compliance