Microsoft 365
Security Services
Mata365 configures Microsoft 365 security properly: Microsoft Defender, multi-factor authentication, conditional access, sensitivity labels, and GDPR-compliant data retention, all activated and working from day one. We are based in Dublin and work with Irish and UK businesses across every sector.
How Microsoft 365 Security
Protects Your Business
Microsoft 365 security provides advanced protection, threat detection, and compliance
tools to keep your business safe.
Threat Protection
Detect and prevent cyber threats before they impact your business.
identity & Access Control
Secure user access with identity management and authentication controls.
Compliance & Data Security
Ensure your data is protected and compliant with industry standards.
Our Microsoft 365 Security
Solutions
Comprehensive security services to protect your Microsoft 365 environment from threats
and risks.
Our Microsoft 365 Security
Implementation Process
A structured approach to secure your Microsoft 365 environment and reduce risks.
Discover & Plan
Conduct a full Microsoft 365 security assessment for your Irish business — reviewing your current configuration, identifying exposed accounts, inactive security controls, and compliance gaps against GDPR and NIS2 requirements.
01.
02.
Design & Configure
Build a tailored Microsoft 365 security framework for your business, covering Microsoft Defender activation, MFA policies, conditional access rules, identity protection, data loss prevention, and sensitivity label configuration.
Deploy & Optimise
Implement all security controls with zero disruption to daily operations, test threat detection responses, and harden your Microsoft 365 environment against phishing, ransomware, and account compromise — the three most common attack vectors targeting Irish SMEs.
03.
04.
Train & Support
Train your team to recognise threats and respond correctly, and provide ongoing Dublin-based security monitoring so any suspicious activity is flagged and addressed before it becomes a breach.
Frequently Asked Questions.
Find answers to common questions about Microsoft 365 security and how Mata365 helps Irish businesses activate the right protections, meet GDPR obligations, and defend against cyber threats.
What Microsoft 365 security features should every Irish business have activated?
Mata365’s Microsoft 365 security audit reviews your full tenant configuration against best practice and Irish regulatory requirements. It covers: which accounts have MFA enabled and which do not, whether Microsoft Defender is active and correctly configured, your current conditional access policies, guest access and external sharing settings in SharePoint and Teams, data retention and deletion policies, admin role assignments, and your Microsoft Secure Score with a prioritised plan to improve it. The audit is the starting point for every security engagement and is available as a standalone service for Irish businesses that want a clear picture of their current exposure.
Is Microsoft 365 security sufficient for GDPR compliance in Ireland?
Microsoft 365 provides the technical controls needed to support GDPR compliance — data retention policies, access governance, audit logs, data loss prevention rules, and sensitivity labels. However, having these tools available is not the same as being compliant. They need to be correctly configured and actively managed. For Irish businesses under the Data Protection Commission’s jurisdiction, a misconfigured Microsoft 365 environment can create significant compliance exposure even if the licence includes all the right features. Mata365 configures Microsoft 365 security with Irish GDPR requirements specifically in mind.
What is Microsoft Defender and does my Irish business need it?
Microsoft Defender for Office 365 is a threat protection service included in many Microsoft 365 Business Premium licences. It scans emails, links, and attachments in real time to block phishing attempts, malware, and business email compromise attacks before they reach your staff. Given that recent data shows the majority of Irish SMEs experienced targeted email attacks in the past year, Microsoft Defender is not optional — it is essential. Mata365 implements and configures Defender as part of every Microsoft 365 security engagement for Irish businesses.
What is the NIS2 Directive and does it affect Irish businesses using Microsoft 365?
The NIS2 Directive is an EU cybersecurity regulation that came into effect in Ireland in 2025 and expanded the number of Irish businesses required to meet formal cybersecurity standards. If your business operates in a sector covered by NIS2 — including healthcare, transport, digital infrastructure, or managed IT services — you are required to implement appropriate technical security measures. Microsoft 365, properly configured with Defender, MFA, conditional access, and audit logging, forms a solid technical foundation for NIS2 compliance. Mata365 helps Irish businesses assess their NIS2 obligations and configure Microsoft 365 accordingly.
How does multi-factor authentication protect an Irish business in Microsoft 365?
Multi-factor authentication requires a second verification step — typically a code sent to a phone or generated by an authenticator app — before granting access to Microsoft 365 accounts. This single control blocks over 99 percent of automated account compromise attacks. Despite this, many Irish SMEs still have staff accounts protected by password only. Mata365 configures MFA across your entire Microsoft 365 tenant, sets up conditional access policies so legitimate users are not disrupted, and provides staff guidance so the rollout goes smoothly.
What does a Microsoft 365 security audit from Mata365 cover?
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