--- title: Microsoft 365 Security Blog | Marcus Harris | Datatechs Consulting description: Practical insights on Microsoft 365 security, CIS Benchmark compliance, and endpoint management from Datatechs' specialist engineers. image: https://www.datatechs.co.uk/hubfs/raw_assets/public/datatechs-theme/images/Datatech_OG.png --- [Skip to content](https://www.datatechs.co.uk/blog/author/marcus-harris#main-content) [![Datatechs home](https://www.datatechs.co.uk/hs-fs/hubfs/Datatech%20Consulting%20Limited.png?width=2130&height=676&name=Datatech%20Consulting%20Limited.png "Datatechs home")](https://www.datatechs.co.uk) [![](https://www.datatechs.co.uk/hubfs/Datatech%20Consulting%20Limited%20-%20INVERT.png)](https://www.datatechs.co.uk/) [Home](https://www.datatechs.co.uk/) [Services](https://www.datatechs.co.uk/services) [M365 Security Audit](https://www.datatechs.co.uk/audit) [Professional Services and Consultancy](https://www.datatechs.co.uk/services/professional-services) [IT Helpdesk and Support](https://www.datatechs.co.uk/services/it-helpdesk) [Managed Compliance](https://www.datatechs.co.uk/services/managed-compliance) [Power Platform](https://www.datatechs.co.uk/services/power-platform) [Azure and Cloud Infrastructure](https://www.datatechs.co.uk/services/azure-cloud-infrastructure) [View all services →](https://www.datatechs.co.uk/services) [Security Audit](https://www.datatechs.co.uk/audit) [CIS M365 Benchmark](https://www.datatechs.co.uk/audit/cis-m365) [CIS Intune Benchmark](https://www.datatechs.co.uk/audit/cis-intune) [Cyber Essentials](https://www.datatechs.co.uk/audit/cyber-essentials) [View the full audit →](https://www.datatechs.co.uk/audit) [MSP Partners](https://www.datatechs.co.uk/msp-partners) Resources Free Downloads [M365 Security Essentials Checklist](https://www.datatechs.co.uk/resources/m365-security-essentials) [Intune Security Essentials Checklist](https://www.datatechs.co.uk/resources/intune-security-essentials) [About](https://www.datatechs.co.uk/about) [Blog](https://www.datatechs.co.uk/blog) [Contact Us](https://www.datatechs.co.uk/contact) [Home](https://www.datatechs.co.uk/) [Services](https://www.datatechs.co.uk/services) [M365 Security Audit](https://www.datatechs.co.uk/audit) [Professional Services and Consultancy](https://www.datatechs.co.uk/services/professional-services) [IT Helpdesk and Support](https://www.datatechs.co.uk/services/it-helpdesk) [Managed Compliance](https://www.datatechs.co.uk/services/managed-compliance) [Power Platform](https://www.datatechs.co.uk/services/power-platform) [Azure and Cloud Infrastructure](https://www.datatechs.co.uk/services/azure-cloud-infrastructure) [Security Audit](https://www.datatechs.co.uk/audit) [CIS M365 Benchmark](https://www.datatechs.co.uk/audit/cis-m365) [CIS Intune Benchmark](https://www.datatechs.co.uk/audit/cis-intune) [Cyber Essentials](https://www.datatechs.co.uk/audit/cyber-essentials) [MSP Partners](https://www.datatechs.co.uk/msp-partners) Resources [M365 Security Essentials Checklist](https://www.datatechs.co.uk/resources/m365-security-essentials) [Intune Security Essentials Checklist](https://www.datatechs.co.uk/resources/intune-security-essentials) [About](https://www.datatechs.co.uk/about) [Blog](https://www.datatechs.co.uk/blog) [Contact Us](https://www.datatechs.co.uk/contact) THE DATATECHS BLOG # Practical insight on Microsoft 365 and the Microsoft stack. Guides, analysis, and practical advice for IT managers and business owners navigating the Microsoft ecosystem. ## Latest articles [![](https://www.datatechs.co.uk/hs-fs/hubfs/Blog%20Images/datatechs-blog-whats-new-september-2026.png?width=640&height=360&name=datatechs-blog-whats-new-september-2026.png)](https://www.datatechs.co.uk/blog/whats-new-in-microsoft-365-september-2026) Microsoft 365 Security · Email Security · Compliance ## [What's New in Microsoft 365 | September 2026](https://www.datatechs.co.uk/blog/whats-new-in-microsoft-365-september-2026) 2 October 2026 [Read more →](https://www.datatechs.co.uk/blog/whats-new-in-microsoft-365-september-2026) [![](https://www.datatechs.co.uk/hs-fs/hubfs/Blog%20Images/datatechs-blog-agent-365.png?width=640&height=360&name=datatechs-blog-agent-365.png)](https://www.datatechs.co.uk/blog/governing-ai-agents-across-client-tenants-with-microsoft-agent-365) Microsoft 365 Security · Identity and Access ## [Governing AI Agents Across Client Tenants with Microsoft Agent 365](https://www.datatechs.co.uk/blog/governing-ai-agents-across-client-tenants-with-microsoft-agent-365) 25 September 2026 Microsoft Agent 365 reached general availability on 1 May 2026. The Shadow AI page in the Microsoft 365 admin centre now detects seven locally installed AI ... [Read more →](https://www.datatechs.co.uk/blog/governing-ai-agents-across-client-tenants-with-microsoft-agent-365) [![](https://www.datatechs.co.uk/hs-fs/hubfs/Blog%20Images/datatechs-blog-windows-laps-cover.png?width=640&height=360&name=datatechs-blog-windows-laps-cover.png)](https://www.datatechs.co.uk/blog/how-to-deploy-windows-laps-with-entra-id-backup) Microsoft 365 Security · Identity and Access ## [How to Deploy Windows LAPS with Entra ID Backup](https://www.datatechs.co.uk/blog/how-to-deploy-windows-laps-with-entra-id-backup) 18 September 2026 Windows LAPS puts a unique local administrator password on every device and backs it up to Entra ID. The tenant-level switch that allows that backup is off by ... [Read more →](https://www.datatechs.co.uk/blog/how-to-deploy-windows-laps-with-entra-id-backup) [![](https://www.datatechs.co.uk/hs-fs/hubfs/datatechs-blog-ca-baseline.png?width=640&height=360&name=datatechs-blog-ca-baseline.png)](https://www.datatechs.co.uk/blog/deploying-a-conditional-access-baseline-to-any-tenant) Microsoft 365 Security · Identity and Access ## [Deploying a Conditional Access Baseline to Any Tenant](https://www.datatechs.co.uk/blog/deploying-a-conditional-access-baseline-to-any-tenant) 11 September 2026 Every MSP I know has a Conditional Access baseline. Most of them exist as a document somebody wrote once, a set of screenshots, and a memory of roughly what ... [Read more →](https://www.datatechs.co.uk/blog/deploying-a-conditional-access-baseline-to-any-tenant) [![](https://www.datatechs.co.uk/hs-fs/hubfs/datatechs-blog-gdap.png?width=640&height=360&name=datatechs-blog-gdap.png)](https://www.datatechs.co.uk/blog/auditing-delegated-admin-access-across-client-tenants) Identity and Access · Compliance ## [Auditing Delegated Admin Access Across Client Tenants](https://www.datatechs.co.uk/blog/auditing-delegated-admin-access-across-client-tenants) 4 September 2026 Microsoft forced everyone off DAP and onto GDAP, most of us did the migration under time pressure, and the fastest way through was to grant broad roles and ... [Read more →](https://www.datatechs.co.uk/blog/auditing-delegated-admin-access-across-client-tenants) [![](https://www.datatechs.co.uk/hs-fs/hubfs/datatechs-blog-tenant-sprawl.png?width=640&height=360&name=datatechs-blog-tenant-sprawl.png)](https://www.datatechs.co.uk/blog/six-global-admins-and-audit-logging-off-inheriting-a-three-year-old-tenant) Microsoft 365 Security · Identity and Access ## [Six Global Admins and Audit Logging Off: Inheriting a Three-Year-Old Tenant](https://www.datatechs.co.uk/blog/six-global-admins-and-audit-logging-off-inheriting-a-three-year-old-tenant) 28 August 2026 You take on a new client. Somebody set the tenant up three years ago, it has worked fine since, and nobody has looked at it. You get Global Administrator, open ... [Read more →](https://www.datatechs.co.uk/blog/six-global-admins-and-audit-logging-off-inheriting-a-three-year-old-tenant) [All](https://www.datatechs.co.uk/blog) [Identity and Access](https://www.datatechs.co.uk/blog/tag/identity-and-access) [Microsoft 365 Security](https://www.datatechs.co.uk/blog/tag/microsoft-365-security) [Compliance](https://www.datatechs.co.uk/blog/tag/compliance) [Email Security](https://www.datatechs.co.uk/blog/tag/email-security) Sort by Newest first Oldest first Title A–Z Title Z–A [![](https://www.datatechs.co.uk/hs-fs/hubfs/datatechs-blog-legacy-auth.png?width=480&name=datatechs-blog-legacy-auth.png)](https://www.datatechs.co.uk/blog/legacy-authentication-walks-straight-past-your-mfa) Microsoft 365 Security, Identity and Access · 21 August 2026 ## [Legacy Authentication Walks Straight Past Your MFA](https://www.datatechs.co.uk/blog/legacy-authentication-walks-straight-past-your-mfa) A client asks whether they are protected. You check the MFA registration report, see ninety-something per cent, and say yes. Three weeks later an account is compromised with nothing more ... [Read →](https://www.datatechs.co.uk/blog/legacy-authentication-walks-straight-past-your-mfa) [![](https://www.datatechs.co.uk/hs-fs/hubfs/datatechs-blog-email-auth.png?width=480&name=datatechs-blog-email-auth.png)](https://www.datatechs.co.uk/blog/spf-dkim-and-dmarc-across-client-tenants-without-breaking-their-mail) Microsoft 365 Security, Email Security · 14 August 2026 ## [SPF, DKIM and DMARC Across Client Tenants Without Breaking Their Mail](https://www.datatechs.co.uk/blog/spf-dkim-and-dmarc-across-client-tenants-without-breaking-their-mail) Setting up email authentication on one domain is a twenty minute job. Doing it across thirty client tenants, where each one has a marketing platform, an invoicing tool and a booking system nobody ... [Read →](https://www.datatechs.co.uk/blog/spf-dkim-and-dmarc-across-client-tenants-without-breaking-their-mail) GET IN TOUCH ## Looking for help with your Microsoft 365 environment? Our team works with small and mid-sized organisations to secure, audit, and manage their Microsoft 365 configuration. No jargon, no unnecessary overhead. [Book a discovery call](https://www.datatechs.co.uk/book-a-call)[View our services →](https://www.datatechs.co.uk/services) [![Datatechs](https://www.datatechs.co.uk/hs-fs/hubfs/Datatech%20Consulting%20Limited%20-%20INVERT.png?height=56&name=Datatech%20Consulting%20Limited%20-%20INVERT.png)](https://www.datatechs.co.uk/) Microsoft 365 security and compliance for organisations and MSPs. 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