How to Secure Microsoft 365 from Phishing, Data Leaks, and Account Takeovers
- ACE Team
- 12 minutes ago
- 2 min read
Microsoft 365 is powerful for businesses — but without proper protection, it’s also one of the most common entry points for cyberattacks. Phishing emails, misconfigurations, and weak security settings can easily compromise an entire organization.
Here’s how SMEs can protect their M365 environment before threats strike.
1. Common Risks with Microsoft 365
Even with built-in security, many SMEs still face:
• Phishing & Business Email Compromise (BEC)
Attackers impersonate suppliers or colleagues, tricking users into sharing passwords or approving fake payments.
• Account Takeovers
Weak passwords or leaked credentials allow hackers to access email inboxes and cloud data silently.
• Misconfigurations
Incorrect sharing settings, overly broad permissions, or disabled alerts often expose data without anyone noticing.
These risks make M365 one of the top targets for cybercriminals today.
2. How Acronis Email Security & Posture Management Help
Acronis Email Security
Scans incoming emails for phishing, malware, ransomware, and impersonation attempts
Identifies unsafe links and attachments
Filters high-risk messages before they reach users
This drastically reduces phishing success rates.
Security Posture Management
Checks your Microsoft 365 settings for security gaps
Highlights weak policies, outdated configurations, and unsafe sharing setups
Guides you on what to fix to meet best-practice standards
Together, they provide a strong defense around your M365 environment.
3. Benefits of Layered Protection
Relying on just Microsoft’s default protection isn’t enough.
A layered approach gives SMEs:
Email scanning: stops phishing before users see it
Archiving & retention: meet audit and compliance needs
Data protection: prevent accidental or malicious file deletions
Threat reporting: visibility over risky users and activities
This ensures your business stays protected even if one layer fails.
4. Why SMEs Must Enforce MFA & Sharing Policies
Two simple settings can prevent most M365 breaches:
Multi-Factor Authentication (MFA)
Stops attackers even if they steal your password.
Proper file-sharing controls
Prevents confidential files from being shared publicly or with the wrong users.
These small steps significantly reduce account takeovers and data leaks.
Strengthen your Microsoft 365 with ACE CyberShield Max — now PSG-approved.
Want to reduce phishing risks and secure your cloud data
Contact us for a free consultation and PSG quotation.
Contact Us
For any enquiries, please contact us at 📩 enquiry@acebizservices.com or 📞+65 6262 0402.
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