Microsoft 365 Hardening

MICROSOFT 365 HARDENING

Secure Your M365 Environment Before Attackers Exploit It

Microsoft 365 is powerful — but out of the box, it’s not secure enough for today’s threat landscape. Many businesses mistakenly assume that Microsoft takes care of all security responsibilities. In reality, you're responsible for securing identities, email, data, and access controls. Difend helps you close the gaps. We audit, configure, and harden your Microsoft 365 setup to reduce risks like phishing, account compromise, insider threats, and compliance violations — without disrupting your users.

What’s Included in Our Microsoft 365 Hardening

Email Security Configuration

We implement SPF, DKIM, and DMARC to prevent spoofing. We also enable Defender for Office 365 to protect against phishing, ransomware, and malicious links.

Multi-Factor Authentication (MFA)

We enforce MFA with Conditional Access Policies — ensuring it’s applied securely, consistently, and intelligently based on location, device, or risk level.

Identity & Access Governance

Using Azure AD, we lock down access with role-based access control (RBAC), restrict guest access, and remove unnecessary admin rights.

Data Loss Prevention & Sensitivity Labels

We configure policies to detect and prevent sensitive data leakage (e.g. credit card numbers, PII, health records) across email, OneDrive, and SharePoint.

Safe Attachments & Safe Links

We enable advanced email scanning tools that detonate suspicious attachments and rewrite URLs to prevent credential harvesting.

Audit Logging & Alerting

We turn on and tune unified audit logs, mailbox audit logs, and security alerts so that suspicious activity doesn’t go unnoticed.

Mobile & BYOD Security

We integrate Microsoft Intune or MDM to enforce encryption, block rooted/jailbroken devices, and manage data access from phones and tablets.

Teams & SharePoint Permissions Review

We review sharing settings, ensure documents aren’t overexposed, and enforce guest access policies in Microsoft Teams and SharePoint Online.

Our remote helpdesk is your first line of support whenever your users run into technical issues. We offer fast, live remote troubleshooting for common problems across Windows, macOS, printers, Office 365, Teams, and common SaaS platforms. Every request is logged and tracked in our ticketing portal, complete with SLAs, email notifications, and detailed resolution notes. Whether it’s a password reset or a stuck printer, our support team works to keep your team up and running.

We handle operating system and third-party patching across your devices, with full visibility into update status, vulnerabilities, and compliance. Our team configures patching schedules to match your work hours and business needs, while minimizing disruption to your staff. We also track all hardware and software assets in real time, helping you manage lifecycle planning, license tracking, and audits without relying on outdated spreadsheets.

We design secure remote access solutions that protect company data while enabling hybrid work. Using VPNs or cloud-based access gateways, we configure encrypted connections, enforce MFA, and apply posture checks to ensure only compliant devices can connect. Whether your users need access to internal files, servers, or apps while working from home or traveling, we make sure every session is encrypted, logged, and compliant with your security policies.

Your firewall is your first line of defense — and we treat it that way. We deploy, configure, and manage business-grade firewalls with security policies tailored to your network structure. From blocking malicious traffic and enforcing app control to creating secure VPN tunnels for remote access, we ensure your firewall is regularly updated, monitored for alerts, and backed up in case of configuration loss. We also review rules monthly to ensure alignment with changing business needs.

Cybersecurity isn’t just one tool — it’s a system of overlapping protections. We manage the daily defense of your environment with email threat protection, dark web monitoring, phishing simulation, and awareness training programs. We enforce SPF/DKIM/DMARC email standards, detect password leaks on the dark web, and simulate phishing attacks to train employees before attackers reach them. Our managed security layer is customizable to match your risk profile, compliance needs, and staff size.

Every device is a potential entry point — and we make sure each one is properly secured. We deploy and manage next-gen antivirus and EDR solutions such as CrowdStrike, SentinelOne, or Microsoft Defender, depending on your stack. From USB restrictions to real-time threat detection, our team monitors endpoint health, responds to security alerts, and can isolate or remediate infected devices before they cause damage. We also ensure every device is encrypted and policy-compliant.

🏢 Who It’s For?

Companies relying on Microsoft 365 for daily operations

Healthcare, legal, or financial services handling sensitive client data

Businesses experiencing suspicious logins, spam complaints, or phishing attempts

Why Difend?

We don’t just enable settings — we understand the risks behind them. With experience across regulated industries and small businesses, we tailor M365 hardening to your specific use case, size, and compliance needs — all without user disruption.

Secure Email Authentication

We implement SPF, DKIM, and DMARC to block spoofed emails and protect your domain reputation.

Data Loss Prevention (DLP)

We apply rules that automatically detect and prevent sensitive data (like financial or health records) from leaving your environment.

Real-Time Threat Protection

Advanced anti-phishing tools like Safe Links and Safe Attachments neutralize malicious emails before users can click.

Role-Based Access & Admin Controls

We remove excessive admin privileges, lock down external sharing, and apply least-privilege access across Teams, SharePoint, and Exchange.

Unified Audit Logging & Alerts

We enable Microsoft 365 audit logs and configure alerting so you’re always informed of suspicious login attempts or privilege abuse.

Intelligent Multi-Factor Authentication (MFA)

Conditional Access ensures MFA is applied based on user risk, device type, or login behavior — without frustrating employees.

Deliverables

A full Microsoft 365 security assessment report

Hardened configurations aligned to NIST/OFSI guidelines

Conditional Access and MFA policy setup

Email authentication policies (SPF, DKIM, DMARC)

DLP rules and sensitivity labels

A remediation roadmap for remaining gaps

Optional monthly reviews and user training