Top Cybersecurity Tips Every Growing Business Should Follow in 2026
Cybersecurity threats targeting businesses have increased dramatically in both frequency and sophistication. What was once considered an enterprise concern is now an immediate and material risk for businesses of every size — and growing businesses, often operating without dedicated IT security resources, are increasingly the preferred target.
The good news is that the majority of successful cyberattacks exploit known, preventable vulnerabilities. Implementing the right foundational controls significantly reduces your exposure. This guide covers the cybersecurity practices that every growing business should have in place in 2026.
1. Enforce Multi-Factor Authentication Across Every System
Multi-factor authentication (MFA) — requiring a second form of verification in addition to a password — is the single most effective control for preventing unauthorised account access. The overwhelming majority of credential-based attacks, including those leveraging stolen or phished passwords, are defeated by MFA.
MFA should be enforced — not just offered — across:
Microsoft 365, Google Workspace, and all cloud productivity platforms
VPN and remote access solutions
Banking, payment, and financial management platforms
Domain registrars and DNS management
Any system containing customer or employee personal data
💡 Use an authenticator app (such as Microsoft Authenticator or Google Authenticator) rather than SMS-based MFA, which is vulnerable to SIM-swapping attacks.
2. Maintain a Rigorous Patch Management Programme
Unpatched software is the most commonly exploited attack vector in successful cyberattacks. When a vulnerability is publicly disclosed, attackers actively scan for unpatched systems — often within hours of disclosure. A systematic patch management programme that applies security updates promptly closes this window of exposure.
Patch management should cover:
Business applications and line-of-business software
Network devices: routers, switches, firewalls, and access points
Browser and browser extensions
Third-party plugins and integrations
Automated patch deployment tools — available through most managed IT providers — remove the reliance on manual processes and ensure updates are applied consistently and promptly.
3. Implement Layered Endpoint Protection
Traditional antivirus software is insufficient against the sophisticated, fileless, and AI-driven malware variants that are increasingly common in 2026. Endpoint Detection and Response (EDR) solutions provide significantly more advanced protection:
Real-time behavioural monitoring that detects threats based on activity, not just known signatures
Automated response capabilities that can isolate a compromised device from the network within seconds
Forensic data collection for post-incident investigation
Cloud-managed deployment and monitoring across all devices
EDR should be deployed across every device that accesses business systems — including personal devices used for work under BYOD arrangements.
4. Conduct Regular, Tested Data Backups
Ransomware attacks — in which attackers encrypt your data and demand payment for its release — are among the most financially devastating incidents a business can experience. The only reliable defence is a backup strategy that is current, comprehensive, and regularly tested.
A robust backup strategy follows the 3-2-1 rule:
3 copies of your data
2 different storage media types (e.g. cloud and external drive)
1 copy stored offsite or air-gapped from your primary network
Backups must be tested regularly — at minimum quarterly — to confirm that data can actually be restored. Untested backups that fail at the moment of crisis are worse than useless.
💡 Ensure your backup solution creates immutable backups — copies that cannot be modified or deleted by ransomware — as a separate protection layer.
5. Train Your Team in Security Awareness
Human error remains the leading cause of security incidents. Phishing emails, social engineering attacks, and inadvertent data exposure are responsible for the majority of breaches in businesses of all sizes. Technical controls alone cannot compensate for a workforce that is not security-aware.
Effective security awareness training in 2026 includes:
Regular phishing simulation exercises with real-time feedback for those who click
Training on identifying business email compromise (BEC) attacks
Clear guidance on handling sensitive data, including customer and employee information
Reporting protocols for suspicious emails, links, or behaviours
Ongoing microlearning rather than single annual induction sessions
The goal is not to blame employees when they make mistakes — it is to build a security-conscious culture where the right behaviours become habit.
6. Secure Your Email Environment
Email is the primary entry point for the vast majority of cyberattacks. A properly secured email environment includes:
SPF, DKIM, and DMARC records configured to prevent domain spoofing and email impersonation
Advanced email filtering for phishing, malware attachments, and malicious links
Safe Links and Safe Attachments (available in Microsoft Defender for Office 365)
Strict external email tagging to help staff identify messages from outside the organisation
Email security configuration is a technical task that should be performed by a qualified IT professional — misconfiguration can result in legitimate emails being blocked or, worse, providing a false sense of security.
7. Implement Privileged Access Management
The principle of least privilege — giving users access only to the systems and data they genuinely need to perform their role — is one of the most effective controls for limiting the blast radius of a security incident. If an attacker compromises a user account, the damage they can do is constrained by that account's access level.
Review and right-size permissions regularly:
Remove local administrator rights from standard user accounts
Use separate privileged accounts for IT administrators
Review and remove access promptly when staff leave or change roles
Audit sharing permissions on cloud storage and collaboration platforms
8. Secure Your Remote Access Infrastructure
Remote working has expanded the attack surface of most businesses significantly. Insecure remote access — particularly through poorly configured Remote Desktop Protocol (RDP) or VPN solutions without MFA — is one of the most commonly exploited vulnerabilities in targeted attacks.
Remote access best practice in 2026:
Disable RDP exposed directly to the internet — use a VPN or Zero Trust Network Access (ZTNA) solution instead
Enforce MFA on all remote access methods without exception
Monitor remote access logs for unusual login times, locations, or failed attempts
Consider Microsoft Azure AD Conditional Access policies to enforce contextual access controls
9. Have a Documented Incident Response Plan
Even with strong preventative controls in place, security incidents can and do occur. Businesses that have a documented, practised incident response plan recover faster, suffer less financial damage, and are better positioned to meet any notification obligations under the Australian Privacy Act.
Your incident response plan should address:
Who is responsible for coordinating the response
How to isolate affected systems without destroying forensic evidence
When and how to notify affected customers and relevant authorities
How to engage your MSP or specialist incident response support
How to communicate internally and externally during an incident
10. Partner With a Security-First Managed IT Provider
Implementing and maintaining the controls described in this guide requires genuine expertise and ongoing attention. For most growing businesses, partnering with a managed IT provider that treats security as a foundational discipline — rather than an optional extra — is the most efficient and reliable way to achieve a strong security posture.
A quality MSP provides continuous monitoring, proactive vulnerability management, staff training support, and rapid incident response — giving you enterprise-level security capability without the overhead of an in-house security team.
Final Thoughts
Cybersecurity in 2026 is not about achieving perfect protection — it is about being a harder target than comparable businesses, and being prepared to respond effectively when incidents occur. Implementing these ten foundational controls will significantly reduce your risk exposure and your recovery time if you are ever targeted.
Want to strengthen your business cybersecurity? Intro Labs provides cybersecurity services as part of our managed IT offering for growing businesses across Australia — from endpoint protection and email security to staff training and incident response planning. Visit introlabs.com.au or email us at info@introlabs.com.au and we will get back to you promptly.
