Most security incidents are not unforeseeable events. They are the predictable results of known gaps that were not addressed. Organizations that invest in proactive security practices experience fewer incidents, recover faster when incidents do occur, and spend less time in reactive crisis mode. Here are the practices that matter most.
Attack Simulation Training
Phishing is the entry point for the majority of ransomware attacks and business email compromise incidents. Generic security awareness presentations have limited impact on actual user behaviour. Attack simulation training, which sends realistic simulated phishing emails to employees and delivers targeted training to those who engage with them, changes behaviour in a way that one-time training does not.
Organizations that run regular simulations see measurable improvement in click rates over time. The employees who need the most help get the most targeted support, and the overall organization becomes harder to successfully phish.
Backup Testing
An untested backup is an untested assumption. Backup solutions can fail silently: jobs complete without error but produce backups that cannot be restored. Organizations that discover this during an actual recovery event are in the worst possible position.
Scheduling regular recovery tests, at least quarterly for critical data, converts backup from an assumption into a verified capability. The test should actually restore data to a test environment and verify it is complete and usable, not just confirm that backup jobs are completing successfully.
Patch Management
Unpatched software is one of the most consistently exploited attack vectors. Many significant ransomware campaigns have targeted vulnerabilities for which patches were available months before the attack. Applying security updates promptly closes these windows before attackers can use them.
Automated patch management through Microsoft Intune ensures devices stay current without requiring users to manually approve and install updates. Endpoint detection tools provide visibility into which devices are out of compliance before a vulnerability is exploited.
Continuous Monitoring
Security alerts are only useful if someone is reviewing them. Continuous monitoring through a managed detection and response service means threats are identified and acted on around the clock rather than waiting until someone checks a dashboard. The difference between a 23-minute containment and a multi-day breach often comes down to how quickly the alert was seen and investigated.
Microsoft 365 Security Baseline
Microsoft publishes security baselines for Microsoft 365 that represent the configurations Microsoft recommends for organizations at different security maturity levels. Auditing your current configuration against these baselines identifies gaps that accumulated over time as the environment grew and changed.
Common baseline items that drift in real environments include MFA enforcement gaps, legacy authentication protocols still enabled, over-permissive external sharing settings, and admin accounts with excessive privileges that should have been scoped down.
Layered Security
No single tool or practice eliminates security risk. Proactive security means building layers: identity controls (MFA, passwordless), device management (Intune, patch management), endpoint protection (managed antivirus), backup (third-party Microsoft 365 backup), user training (attack simulation), and monitoring (MDR/ITDR). Each layer catches what the others miss.
The organizations that experience the most severe incidents are rarely the ones that had no security. They are the ones that had gaps they did not know about. Proactive practices are how you find the gaps before attackers do.