How to conduct a security audit of Microsoft 365?
A Microsoft 365 security audit involves systematically reviewing accounts, access rights, policies, and security settings. Using tools such as Secure Score, Activity Logs, Advanced Threat Protection (ATP), MFA, and Conditional Access, administrators can identify risks, fix vulnerabilities, and improve the company’s protection against phishing, malware, ransomware, and data breaches.
Background and overview
Security reviews are essential to ensure that the Microsoft 365 environment is properly configured and protected against modern cyber threats. By conducting such reviews on a regular basis, organizations can minimize risks and meet compliance requirements.
Why conduct a safety review?
The purpose is to identify and eliminate vulnerabilities, verify that security features are active and ensure that users comply with security policies.
Use tools like Secure Score
The Secure Score provides a score of the company’s security status and recommended actions. It shows which areas can be improved to strengthen protection.
Review user accounts and access rights
Check that users have the correct permissions and that no redundant administrator accounts exist. Ensure that MFA is enabled for all critical accounts.
Analyzing activity logs
By reviewing logs from Exchange, SharePoint, OneDrive, Teams and Azure AD, suspicious activity and unusual login patterns can be identified.
Check security settings
Verify that Advanced Threat Protection (ATP), Safe Links, Safe Attachments, Conditional Access and other protection features are properly configured and active.
Evaluate policies and training
Ensure that security policies are up to date, communicated to users and that training programs are conducted regularly.
Reporting and actions
Compile a report with identified risks, recommended actions and a plan to improve the level of safety.
Steps for an effective security review
- Secure Score: Review scores and recommendations for security improvements.
- User accounts: Check permissions, MFA and redundant administrator accounts.
- Activity logs: Identify unusual activities in emails, files and Teams.
- Security settings: Ensure proper configuration of Advanced Threat Protection (ATP), Safe Links and Conditional Access.
- Policies and training: Update and communicate internal security policies and conduct training.
- Reporting: Document results and create a plan for action.
Related questions
What is a security briefing?
A systematic review of user accounts, access rights, security settings and policies in Microsoft 365.
What tools are used?
Secure Score, Activity Logs, Advanced Threat Protection (ATP), MFA and Conditional Access are used for analysis and improvement.
How often should a security review be carried out?
Regular review is recommended, at least a few times a year or when there are changes in the IT environment.
What is the aim of the briefing?
Identifying risks, improving safety and ensuring compliance with internal and external regulations.
Can a security briefing prevent breaches?
It significantly reduces risk by detecting vulnerabilities and ensuring proper configuration, but should be complemented by continuous monitoring and training.
