Security blog
Explore insights, industry trends, and practical tips that have the cybersecurity industry buzzing.
64 Schools, One Cyberattack: What Springfield Public Schools Teaches K-12 IT Leaders About Operational Resilience
In September 2026, a cyberattack didn’t steal a single dollar from Springfield Public Schools — and it still shut down…
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When a Phone Call Becomes a Data Breach: The Technical Anatomy of the McKesson Vishing Attack
No exploit. No malware. No unpatched server. Somewhere inside McKesson Corporation this past August, an employee picked up the phone,…
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Microsoft 365 Updates and Retirements: What EDU & SLED IT Teams Need to Know This September
Microsoft 365 continues to evolve — and for education and state and local government (SLED) IT teams, this month’s changes…
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Microsoft 365 Updates and Retirements: What EDU & SLED IT Teams Need to Know
Microsoft 365 continues to evolve—and for education and state and local government IT teams, those changes can have real operational…
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Practical AI Governance in Microsoft 365: How Education and Public Sector Teams Can Secure AI
AI is already part of the workplace. For K-12 school districts, higher education institutions, and government organizations, employees are using…
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Microsoft Is Retiring SMS and Voice MFA: What Education & SLED IT Teams Need to Know
Microsoft is making a major change to authentication in Microsoft Entra ID: SMS and voice will no longer be the…
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Iranian Cyber Threats Continue to Target Government and Higher Education in 2026
Iranian state-sponsored cyber activity is evolving — and government agencies, colleges, universities, and K-12 districts remain among its highest-value targets.…
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Three Active Microsoft 365 Phishing Campaigns Targeting Schools and Government Agencies
School districts, universities, and state and local government agencies share something that makes them high-value targets for threat actors: large,…
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Critical Microsoft 365 Updates for K–12, Higher Education, and Government IT Teams — July 2026
Your monthly digest from Guardian 365: what’s changing in M365, what it means for your environment, and what to do…
Read moreThe Canvas Breach Reached Further Than You Think.
If your institution uses Canvas and Microsoft 365, the risk didn’t stop at Instructure. It’s sitting in your Entra ID…
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