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Microsoft 365 offers powerful security features that often go unnoticed. Here are some lesser-known tricks to enhance your security posture:
- Conditional Access Policies: Restrict access based on user location, device state, or risk level.
- Secure Score: Use Microsoft’s Secure Score to measure and improve your security configuration.
- Email Encryption: Enable Office 365 Message Encryption (OME) for sensitive communications.
- Multi-Factor Authentication (MFA): Enforce MFA for all users, especially admins.
- Audit Logging: Turn on unified audit logging to track user and admin activities.
Read more here: https://lnkd.in/eUGhdvbv
You Should Know:
1. Conditional Access Policies
Use PowerShell to enforce Conditional Access:
New-AzureADPolicy -Definition @('{"ConditionalAccessPolicy":{"Applications":{"IncludeApplications":["All"]},"Users":{"IncludeUsers":["All"]},"Conditions":{"ClientAppTypes":["Browser","MobileAppsAndDesktopClients"]}}}') -DisplayName "Restrict Access Policy" -Type "ConditionalAccessPolicy"
2. Microsoft Secure Score Check
Run this PowerShell command to check your Secure Score:
Get-M365DSecurityScore
3. Enforce MFA for All Users
$users = Get-MsolUser -All
foreach ($user in $users) {
Set-MsolUser -UserPrincipalName $user.UserPrincipalName -StrongAuthenticationRequirements @{State="Enabled"}
}
4. Enable Unified Audit Logging
Set-AdminAuditLogConfig -UnifiedAuditLogIngestionEnabled $true
5. Email Encryption (OME) Setup
Set-IRMConfiguration -AzureRMSLicensingEnabled $true
What Undercode Say
Microsoft 365 security is often underutilized. Here are additional Linux and Windows commands to strengthen your defenses:
- Linux:
Check suspicious logins last -f /var/log/auth.log | grep "Failed password" Monitor open ports sudo netstat -tulnp Check for rootkits sudo rkhunter --check
-
Windows:
:: Check active network connections netstat -ano</p></li> </ul> <p>:: Scan for malware powershell -Command "Start-MpScan -ScanType FullScan" :: Verify firewall rules netsh advfirewall show allprofiles
Always keep your systems updated and enforce strict access controls.
Expected Output:
A hardened Microsoft 365 environment with improved security configurations, enforced MFA, and detailed audit logs for compliance.
References:
Reported By: Peterrising Simple – Hackers Feeds
Extra Hub: Undercode MoN
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