What’s New in Microsoft Security: Key 2025 Defender & Sentinel Upgrades That Protect Your Business 

December 12, 2025

You hear it all the time; cyber-attacks continue to grow and evolve with technology. As we gain a new function or tool, so do bad actors. From AI-written phishing emails to invoice fraud and QR code scams, 2025 saw a growing list of avenues for bad actors to take to get to your data and employees.  

To stay nimble and effective, we utilize Microsoft security products to protect your assets and give you peace of mind. Microsoft is constantly adapting to the field, so new threats aren’t effective for long. Here are some powerful updates that came through in 2025 and how they support business operations. 

Unified Protection 

Microsoft is consolidating and modernizing its security stack, meaning enhanced detection and response. This consolidation supports a true Extended Detection and Response (XDR) environment, with multiple layers of protection, alerting, threat intelligence, and automated response, meaning we get: 

  • simpler access to logs, alerts, and information for faster detection and response 
  • unified view supports compliance and clearer reporting 
  • FIT will be better able to act quickly on any potential threats 
  • real-time collaboration to help accelerate investigation and incident resolution. 

Advanced Behavior Analytics & Cross Platform Data Sources 

Tools can now spot suspicious behavior patterns (not just known malware), including: 

  • identifying suspicious logins, administrator updates, authentication failures and changes 
  • analyzing typical behavior patterns of your employees and affiliated services to spot anomalies and verify or block suspicious activity 
  • identifying potential weaknesses before damage is done and confirm whether that 2am password change was legit. 

Wider Coverage 

Microsoft’s upgraded security tools now offer broader protection: 

  • Coverage across Windows, Mac, Linux, and cloud environments — protecting hybrid systems. 
  • Covers more than just Microsoft services, meaning suspicious activity in other platforms is also monitored.

Stronger Reporting 

Better visibility means better strategy. New reporting capabilities include:  

  • support for exporting threat intelligence to external platforms 
  • threat intelligence sharing is often a part of industry/regulator expectations, enabling you to be proactive and connected to today’s threats and what’s coming down the pike 
  • Microsoft’s enhanced threat intelligence and URL scanning, so we can stop malicious content before it reaches inboxes. 

Stronger Cybersecurity Services from FIT 

To better utilize Microsoft’s security stack, we’re partnering with an expert cybersecurity firm to enhance our security practices and enable 24/7 monitoring, detection, and immediate response. With this collaboration, our already top-class security support will be able to utilize the full suite of tools from Microsoft Sentinel at all times, ensuring your business can run safely and confidently, knowing you’re protected all day, every day.  

Upgrade Your Security with FIT 

With the right partner, cybersecurity doesn’t have to be overwhelming. Consolidating your security stack with an expert partner and utilizing powerful, up-to-date tools means stronger security, easier reporting, and less downtime. Feel free to reach out any time and learn more about how our capabilities can support your business needs and strengthen your cybersecurity service.