Microsoft has just rolled out one of the most significant security updates for small and medium businesses in years. Starting this month, enterprise-grade protection that was previously reserved for expensive high-tier plans is now being bundled into the entry-level Microsoft 365 Business Basic and Business Standard licenses.
For the first time, Australian small businesses on basic plans will have access to the same "Safe Links" and "Safe Attachments" technology used by global corporations. This update is a major win for cyber security for small business Australia, as it effectively closes a long-standing "security gap" that hackers have spent years exploiting. At Cubit Cyber, we have analysed these changes and identified the three critical areas where your business needs to take action this month.
Closing the Security Gap: Defender Features for Everyone
Until now, if your business was on a Microsoft 365 Business Basic or Standard plan, you were missing out on several layers of advanced threat protection. You had basic spam filtering, but you did not have the real-time scanning tools required to stop modern, AI-driven phishing attacks.
As of April 1, 2026, Microsoft has integrated core elements of Microsoft Defender for Office 365 Plan 1 directly into these entry-level licenses. This includes:
- URL Protection (Safe Links): Every link in every email is now scanned at the moment an employee clicks it. If the destination is a known malicious site, the user is blocked from entering.
- Safe Attachments: Email attachments are "detonated" in a secure virtual environment to check for hidden malware before they ever reach your employee's inbox.
- Advanced Anti-Phishing: Machine learning models now scan for impersonation attempts, such as an email that looks like it is from your CEO but is actually from a spoofed domain.
This is a massive improvement for phishing protection small business Australia. It means that even the smallest team can now have "security-by-default" without needing to upgrade to the more expensive Business Premium tier just for these specific tools.
The 50GB Mailbox Upgrade and AI Readiness
To support the increasing use of Microsoft Copilot and AI-driven search, Microsoft is also bumping the mailbox storage for Business Basic and Standard users to 50GB.
This is more than just a storage increase. The larger mailbox capacity allows Microsoft's AI tools to index a wider range of historical data, making search results and AI-generated summaries much more accurate for your team. If you have been struggling with "mailbox full" warnings or have had to archive critical business emails to save space, this change provides much-needed breathing room.
At Cubit Cyber, we recommend using this extra space to ensure your team is keeping important client communications within the secure Microsoft 365 environment, rather than letting them spill over into personal accounts or insecure messaging apps.
CRITICAL: Immediate License Suspension Policy
This is the most important operational change for Australian business owners to understand this month. Effectively immediately, Microsoft has removed the 30-day grace period for expired or unpaid licenses.
In the past, if a credit card expired or a renewal was missed, your team would usually have about a month to fix the billing issue before their email stopped working. That grace period is now gone.
If a license lapses for any reason, access to that account and all associated data (Email, SharePoint, Teams) will be suspended immediately. In a world where business moves at lightning speed, even a few hours of downtime because of a billing error can be catastrophic. We strongly advise all our clients to review their Microsoft 365 billing settings and ensure a secondary payment method is authorised to prevent accidental lockouts.
Preparing for the July 2026 Price Increase
While these new security features are rolling out now at no extra cost, Microsoft has confirmed that a global pricing adjustment will follow on July 1, 2026.
The price for Business Basic and Business Standard will increase by approximately $1.00 to $1.50 AUD per user, per month. Interestingly, the price for Microsoft 365 Business Premium will remain unchanged.
This pricing shift makes Business Premium an even more attractive option. For businesses that need advanced device management (Intune) and full endpoint security, the gap in price between "Standard" and "Premium" is now smaller than ever. If you are currently on a Standard plan, now is the perfect time for a cloud security review Australia to see if moving to Premium makes more financial and security sense for your team.
Why Business Premium is Still the Gold Standard
Despite these great additions to the lower-tier plans, Microsoft 365 Business Premium remains the recommended choice for any Australian SME with more than five employees.
While Basic and Standard now have better email protection, they still lack Microsoft Intune (which allows us to remotely wipe a lost laptop) and Defender for Business (which protects the actual computers and servers from ransomware). Think of the new updates as a better "front door" for your business email, while Business Premium remains the full "security system" for your entire office.
How to Check Your Current Security Status
With these features rolling out throughout April, your Microsoft 365 environment may need a "nudge" to ensure the new policies are active and configured correctly. "Default" settings are a good start, but they are rarely enough to stop a determined attacker.
Cubit Cyber specialises in helping Australian SMEs navigate these complex licensing changes. We can audit your current setup, ensure your Safe Links policies are hardened, and help you decide which license tier provides the best value for your specific business needs.
Get a free Microsoft 365 security audit for your business today.