💼 Management Samenvatting
Deze security regelen waarborgt de correcte configuratie van beveiligingsinstellingen op Windows endpoints.
Aanbeveling
IMPLEMENT
Risico zonder
High
Risk Score
7/10
Implementatie
2u (tech: 1u)
Van toepassing op:
✓ Windows
Deze instelling is onderdeel van de Windows security baseline en beschermt tegen bekende aanvalsvectoren door het afdwingen van veilige configuraties.
PowerShell Modules Vereist
Primary API: Graph
Connection:
Required Modules: Microsoft.Graph.DeviceManagement
Connection:
Connect-MgGraphRequired Modules: Microsoft.Graph.DeviceManagement
Implementatie
Dit regelen configureert retention teams private via Microsoft Intune apparaat configuratie beleid of compliance policies om Windows endpoints te beveiligen volgens security best practices.
Vereisten
m365
Implementatie
Gebruik PowerShell-script retention-teams-private.ps1 (functie Invoke-Monitoring) – Monitoren.
monitoring
Gebruik PowerShell-script retention-teams-private.ps1 (functie Invoke-Monitoring) – Controleren.
Remediatie
Gebruik PowerShell-script retention-teams-private.ps1 (functie Invoke-Remediation) – Herstellen.
Compliance en Auditing
Beleid documentatie
Compliance & Frameworks
- CIS M365: Control 18.9.19.2 (L1) - CIS Security Benchmark aanbevelingen
- BIO: 16.01 - BIO Baseline Informatiebeveiliging Overheid - 16.01 - Gebeurtenissen logging en audittrails
- ISO 27001:2022: A.12.4.1 - ISO 27001:2022 - Gebeurtenissen logging en audittrails
Automation
Gebruik het onderstaande PowerShell script om deze security control te monitoren en te implementeren. Het script bevat functies voor zowel monitoring (-Monitoring) als remediation (-Remediation).
PowerShell
<#
.SYNOPSIS
Retention Policy Teams Private Channel 7 Jaar
.DESCRIPTION
7-year retention for Teams Private Channels
.NOTES
NL Baseline v2.0
#>
#Requires -Version 5.1
#Requires -Modules ExchangeOnlineManagement
[CmdletBinding()]
param([switch]$Monitoring, [switch]$Remediation, [switch]$Revert,
[switch]$WhatIf)
$ErrorActionPreference = 'Stop'
$script:RetentionDays = 2555
$script:RetentionYears = 7
Write-Host "`n========================================" -ForegroundColor Cyan
Write-Host "Retention Teams Private Channel 7 Jaar" -ForegroundColor Cyan
Write-Host "========================================`n" -ForegroundColor Cyan
function Invoke-Monitoring {
try {
Connect-IPPSSession -ShowBanner:$false -ErrorAction Stop
$policies = Get-RetentionCompliancePolicy |
Where-Object { $_.TeamsChannelLocation -ne $null }
$result = @{
isCompliant = $false
total = $policies.Count
compliant = 0
}
if ($policies.Count -eq 0) {
Write-Host " No Teams Private policies" -ForegroundColor Red
}
else {
foreach ($p in $policies) {
$rules = Get-RetentionComplianceRule -Policy $p.Name -ErrorAction SilentlyContinue
$maxD = 0
foreach ($rule in $rules) {
if ($rule.RetentionDuration) {
$d = [int]$rule.RetentionDuration
if ($d -gt $maxD) { $maxD = $d }
if ($d -ge $script:RetentionDays -and $p.Enabled) {
$result.compliant++
$result.isCompliant = $true
}
}
}
Write-Host " $($p.Name): $maxD days" -ForegroundColor $(
if ($maxD -ge $script:RetentionDays) { "Green" } else { "Yellow" }
)
}
}
Write-Host "`n Total: $($result.total) | Compliant: $($result.compliant)" -ForegroundColor Cyan
if ($result.isCompliant) {
Write-Host "`n[OK] COMPLIANT" -ForegroundColor Green
exit 0
}
else {
Write-Host "`n[FAIL] NON-COMPLIANT" -ForegroundColor Red
exit 1
}
}
catch {
Write-Host "ERROR: $_" -ForegroundColor Red
exit 2
}
}
function Invoke-Remediation {
try {
Connect-IPPSSession -ShowBanner:$false -ErrorAction Stop
$n = "Teams Private Channel $script:RetentionYears Year Retention"
$p = New-RetentionCompliancePolicy -Name $n -Comment "NL Baseline" `
-TeamsChannelLocation All -Enabled $true -ErrorAction Stop
$r = New-RetentionComplianceRule -Name "$n - Rule" -Policy $n `
-RetentionDuration $script:RetentionDays -RetentionComplianceAction Keep -ErrorAction Stop
Write-Host "[OK] Policy created" -ForegroundColor Green
exit 0
}
catch {
Write-Host "ERROR: $_" -ForegroundColor Red
exit 2
}
}
function Invoke-Revert {
try {
Connect-IPPSSession -ShowBanner:$false -ErrorAction Stop
$n = "Teams Private Channel $script:RetentionYears Year Retention"
$p = Get-RetentionCompliancePolicy -Identity $n -ErrorAction SilentlyContinue
if ($p) {
Remove-RetentionCompliancePolicy -Identity $n -Confirm:$false -ErrorAction Stop
Write-Host "Removed" -ForegroundColor Yellow
}
exit 0
}
catch {
Write-Host "ERROR: $_" -ForegroundColor Red
exit 2
}
}
try {
if ($Revert) { Invoke-Revert }
elseif ($Monitoring) { Invoke-Monitoring }
elseif ($Remediation) { Invoke-Remediation }
else { Write-Host "Use: -Monitoring | -Remediation | -Revert" -ForegroundColor Yellow }
}
catch { throw }
finally {
Write-Host "`n========================================`n" -ForegroundColor Cyan
}
Risico zonder implementatie
Risico zonder implementatie
High: No auth tracking.
Management Samenvatting
Schakel in audit logging.
- Implementatietijd: 2 uur
- FTE required: 0.01 FTE