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Managed Microsoft 365 Security

Your Microsoft 365 Is Probably Running on Default Settings. That's a Problem.

Most businesses have Microsoft 365. Few have it configured securely. We fix that.

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Microsoft 365 Is Configured for Convenience, Not Security

You've invested in Microsoft 365. Your team uses it every day for email, file sharing, and collaboration. But here's what most businesses don't realise: out of the box, Microsoft 365 is configured for convenience, not security.

Default settings leave gaps that attackers actively exploit. Basic multi-factor authentication can be bypassed. Email authentication is often misconfigured. Conditional Access policies that should be protecting your business simply don't exist.

The result? Your Microsoft 365 environment looks secure on the surface, but underneath it's leaving doors open that shouldn't be.

The Threat Landscape Has Shifted

The attacks targeting Microsoft 365 in 2025 and 2026 aren't what they were a few years ago. Attackers have adapted.

Identity is the new target

Attackers aren't trying to break through your firewall anymore. They're logging in as your staff. Stolen credentials, phished sessions, and compromised accounts are now the primary entry point into Australian businesses. Once they're in, they look legitimate—because they're using real accounts.

Standard MFA isn't enough

Adversary-in-the-middle attacks can intercept authentication sessions in real time, bypassing SMS codes and authenticator apps. Device code phishing tricks users into authenticating attackers' devices. The MFA you set up two years ago may no longer be protecting you.

Business email compromise is faster than ever

Attackers who gain access to a mailbox can send a fraudulent payment request within hours—not days. They monitor email threads, wait for the right moment, and insert themselves into genuine conversations about upcoming payments. For professional services firms handling client funds, the stakes couldn't be higher.

Email spoofing exploits misconfigurations

When email authentication records aren't configured correctly, attackers can send emails that appear to come from inside your organisation. These messages bypass spam filters because they look legitimate. Your own domain becomes a weapon against you.

Managed Microsoft 365 Security Services

Our managed Microsoft 365 security services take your environment from “it's probably fine” to genuinely secure. We configure, monitor, and maintain the security controls that default configurations leave wide open.

Conditional Access Configuration

Conditional Access is the control centre for who can access what, from where, and under what conditions. Done right, it's your first line of defence. Done wrong—or not at all—it's an open door.

We configure policies that:

  • —Block access from high-risk locations and unapproved countries
  • —Require compliant, managed devices for sensitive applications
  • —Enforce stronger authentication for administrator accounts
  • —Block legacy authentication protocols that bypass modern security
  • —Prevent device code authentication abuse

This isn't a one-size-fits-all template. We design policies around how your business actually operates.

Phishing-Resistant MFA

Standard MFA using SMS or basic authenticator apps can be bypassed by sophisticated attacks. Phishing-resistant MFA—using hardware security keys or passkeys—removes this vulnerability entirely.

We help you move beyond checkbox MFA to authentication methods that actually withstand modern attacks, without disrupting how your team works.

Email Authentication Hardening

SPF, DKIM, and DMARC are the technical standards that prove emails genuinely came from your domain. Misconfigured, they do nothing. Properly implemented, they stop attackers from impersonating your business.

We audit your current configuration, identify gaps, and implement strict policies that protect your domain from being used in phishing attacks—against you or anyone else.

Microsoft Defender for Office 365

Defender for Office 365 provides advanced protection against phishing, malware, and business email compromise. But the protection you get depends entirely on how it's configured.

We tune Safe Links, Safe Attachments, and anti-phishing policies to match your risk profile. We configure alerting so suspicious activity gets noticed, not buried in a dashboard no one checks.

Identity Protection & Monitoring

Compromised accounts don't always announce themselves. Attackers often maintain access quietly, monitoring email traffic and waiting for the right moment to act.

We implement identity protection policies that detect risky sign-ins, impossible travel, and anomalous behaviour—then take automated action before damage is done. Combined with regular access reviews, we ensure former staff and unused accounts aren't lingering vulnerabilities.

Security Posture Assessments

Before we change anything, we assess what you've got. Our security posture assessment examines your Microsoft 365 configuration against current best practices and the Essential Eight framework.

You get a clear picture of where you stand, what's at risk, and what to prioritise—whether you engage us to fix it or handle it internally.

Data Loss Prevention (DLP) & Compliance

For businesses handling sensitive client information, preventing data leakage is as important as preventing intrusion. Microsoft Purview provides data loss prevention capabilities that many businesses have licensed but never configured.

We implement policies that detect and prevent sensitive information from leaving your organisation inappropriately—via email, Teams, or SharePoint.

Boutique MSP, Senior Expertise

We're not a call centre. When you work with Internacious, you get direct access to senior technical expertise—not a ticket queue.

Direct access, not escalation paths

Your security concerns don't sit in a queue waiting for someone junior to attempt a fix before escalating. You talk directly to the people who understand Microsoft 365 security deeply.

Configured for your business

We don't apply generic templates and call it done. We understand that a 15-person accounting firm operates differently from a 60-person engineering consultancy. Your security configuration should reflect how your business actually works.

Sydney-based, Australian-focused

We understand the Australian regulatory landscape, work in your timezone, and speak your language. No overnight tickets, no offshore support desks.

Getting Started

1

Security Posture Assessment

We begin with a thorough review of your current Microsoft 365 configuration. You'll receive a detailed report identifying gaps, risks, and priorities.

2

Remediation Planning

Based on the assessment, we develop a remediation plan that balances security improvement with business continuity. No big-bang changes that disrupt your operations.

3

Implementation

We configure Conditional Access policies, harden email authentication, deploy phishing-resistant MFA, and tune Defender settings—all with appropriate testing and staged rollout.

4

Ongoing Management

Security isn't set-and-forget. Our managed Microsoft 365 security services include ongoing monitoring, regular reviews, and continuous improvement as threats evolve and your business changes.

I've had the pleasure of working with internacious, and I can confidently say that their IT support services are exceptional. Internacious brings a wealth of experience across all major IT platforms, and their deep knowledge extends to cybersecurity, making them a true experts in the field. Whether it's troubleshooting complex software issues, configuring hardware, or providing advice on securing our network, Dale handles it all with professionalism and efficiency.

Dale's ability to break down technical concepts in a way that's easy to understand is especially valuable. Dale has been an invaluable resource, and I highly recommend internacious IT support services to anyone in need of top-tier technical assistance.

Pascal Durr
Boston University (Chippendale)
Free Security Assessment

How Secure is Your Microsoft 365?

Most businesses run Microsoft 365 on default settings—leaving security gaps they don't know exist. Take our 5-minute assessment to find yours.

Your Security Score
See how your M365 environment measures up
Priority Risk Areas
Identify your top 3 security gaps
Actionable Next Steps
Get specific fixes you can implement today
Start Free Assessment
19 questions · 4 minutes · No technical knowledge required

Find Out Where You Stand

Book a Microsoft 365 Security Posture Assessment. We'll review your current configuration, identify the gaps, and give you a clear picture of what needs attention.

No obligation. No pressure. Just clarity on your security posture.

Call 02 8313 0464

Internacious – Managed Microsoft 365 Security Services Sydney

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