Microsoft 365 Security
Microsoft 365 is the powerhouse of modern business—emails, documents, meetings, and collaboration, all in one place. But while it keeps your team connected, it also makes your business a prime target for cyber threats. Phishing attacks, account takeovers, data leaks, and misconfigurations can turn your productivity hub into a security nightmare.
That’s where IT First Responder steps in. We lock down your Microsoft 365 environment, securing your data, emails, and apps while optimising your setup for efficiency and peace of mind.
Because cybercriminals don’t care about your to-do list—but we do.
Microsoft 365 Security
Why Microsoft 365 Security Matters?
Microsoft 365 comes with built-in security features, but out of the box, they’re not enough. Many businesses assume Microsoft protects everything—but in reality, you’re responsible for securing your own data, users, and configurations.
Without proper protection, your business is vulnerable to:
Phishing & Business Email Compromise (BEC)
Cybercriminals impersonate executives or suppliers to trick employees into transferring money or sharing sensitive data.
Ransomware & Malware
Infected attachments or malicious links can encrypt your files, locking you out of your own business.
Account Takeovers
Weak or reused passwords make it easy for attackers to hijack accounts, gaining access to emails, files, and confidential information.
Data Loss & Compliance Risks
Accidental deletion, insider threats, or misconfigurations can lead to permanent data loss, putting your business at risk of non-compliance.
Unsecured Collaboration & Shadow IT
Employees using Microsoft Teams, SharePoint, and OneDrive without proper security controls can expose your data to outsiders—sometimes without even realising it.
We don’t just stop threats. We proactively secure, optimise, and fortify your Microsoft 365 environment to keep your business running safely and efficiently.
Microsoft 365 Security
How IT First Responder Secures Your Microsoft 365 Environment
Microsoft 365 Backup & Disaster Recovery
Think Microsoft automatically backs up all your data? Think again.
Microsoft 365 only offers limited retention for deleted files and emails. If an employee accidentally deletes critical data or an attacker wipes everything clean, you might never get it back. That’s why we implement:
✔ Automated Microsoft 365 backups for emails, SharePoint, OneDrive, and Teams.
✔ Granular recovery options—restore specific emails, files, or entire accounts.
✔ Long-term retention to protect your data beyond Microsoft’s standard policies.
✔ Ransomware-proof storage to ensure backups remain untampered.
Your data, your business—always recoverable.
Email Security & Phishing Protection
Your inbox is your company’s front door—and cybercriminals know how to pick the lock.
We harden your Microsoft 365 email security to block phishing attempts, prevent spoofing, and stop malicious emails in their tracks with:
✔ Advanced Threat Protection (ATP) to detect and block harmful attachments and links.
✔ DMARC, DKIM & SPF configuration to prevent email spoofing and impersonation.
✔ AI-driven phishing detection to identify and stop sophisticated scams.
✔ User awareness training—because even the best security won’t help if employees don’t know what to look for.
Cybercriminals don’t send warning emails—but we make sure their threats never reach you.
Multi-Factor Authentication (MFA) & Conditional Access
If your Microsoft 365 accounts only have passwords protecting them, you’re already at risk.
We enforce strong, hassle-free authentication to keep attackers out, even if they steal a password:
✔ Multi-Factor Authentication (MFA)—extra security that stops 99.9% of account takeovers.
✔ Conditional Access Policies—only allow logins from approved locations, devices, or trusted networks.
✔ Zero Trust security model—verify every login, every time, no exceptions.
No more weak links. No more easy break-ins.
Microsoft 365 Security Configuration & Optimisation
Many businesses run Microsoft 365 with default settings, leaving security holes wide open.
We audit, refine, and optimise your Microsoft 365 environment to close gaps and boost efficiency:
✔ Least Privilege Access Control—users only get the access they actually need.
✔ Audit Logs & Security Monitoring—track suspicious activity before it turns into a breach.
✔ Secure SharePoint & OneDrive settings—prevent accidental data leaks to the wrong people.
✔ Microsoft Defender for Office 365—advanced security to detect and respond to threats in real-time.
Stronger security, smoother operations—because you shouldn’t have to choose between the two.
Microsoft Teams & Collaboration Security
Your team works better when they’re connected—but if collaboration tools aren’t secured, they can become an easy gateway for attackers.
We lock down Teams, SharePoint, and OneDrive while keeping your business agile:
✔ Prevent data oversharing—control who can share files, both inside and outside your organisation.
✔ Secure guest access—only allow external collaborators with strict permissions.
✔ Block rogue apps & Shadow IT—stop unapproved apps from exposing sensitive data.
✔ Monitor & log activities—keep track of file access, conversations, and user actions for security and compliance.
Collaboration should empower, not endanger. We make sure it stays that way.
Compliance & Data Loss Prevention (DLP)
If your industry has compliance requirements, Microsoft 365 security isn’t optional—it’s mandatory.
We help you stay compliant with:
✔ Data Loss Prevention (DLP) policies—stop sensitive data from being emailed or shared improperly.
✔ Retention & legal hold policies—ensure critical data is stored safely for compliance.
✔ Encryption for sensitive emails & documents—protect data even if it falls into the wrong hands.
✔ Regulatory compliance support—ACSC Essential Eight, ISO 27001, HIPAA, and more.
Protecting your data isn’t just about security—it’s about business survival.
Microsoft 365 Security
Do It Right, or Pay the Price
Cyber threats don’t send invitations—they just show up. Misconfigurations, weak security, and lack of backups put your business at serious risk.
At IT First Responder, we don’t just set up Microsoft 365—we secure, optimise, and protect it so your business can run without fear of downtime, breaches, or data loss.
Because your business deserves better than “default security settings.”
Ready to lock down Microsoft 365 and keep your business safe? Let’s talk.
