Olyteck Blog

Guides for Olyteck Cyber

Field notes and how-tos for SMB and mid-market teams on Microsoft 365 - EU-hosted, no fluff.

Cyber

Microsoft is retiring SMS and voice MFA: what your users see in February 2027

Microsoft retires SMS and voice call MFA on 1 February 2027. Users whose only method is SMS get blocked at sign-in. Here is how to scope the work.

19 Aug 2026 · 7 min read
Cyber

SharePoint Advanced Management ships with Copilot: what it covers, and what it does not see

A Microsoft 365 Copilot licence unlocks SharePoint Advanced Management. Here is honestly what SAM covers, and the four blind spots that remain.

19 Aug 2026 · 7 min read
Cyber

AI agents in Microsoft 365: the new attack surface to audit

Copilot agents, shadow AI and OAuth grants are multiplying inside Microsoft 365 tenants. Here is what agent sprawl looks like, why every agent is a non-human identity, and the audit checklist to run.

28 Jul 2026 · 5 min read
Cyber

Copilot prompt hacking: the questions that quietly expose Microsoft 365 data

Microsoft 365 Copilot answers from whatever a user can already open. These are the everyday prompts that surface data you thought was hidden, and how to shut them down.

24 Jul 2026 · 4 min read
Cyber

Microsoft 365 Copilot readiness: the permissions checklist to run first

Before you switch on Microsoft 365 Copilot, fix the oversharing it will surface. A practical permissions and governance checklist for a safe rollout.

26 Jun 2026 · 5 min read
Cyber

Microsoft 365 storage is full: how to find what is eating your quota

Running low on Microsoft 365 storage? Before you buy more, find the version history, ex-employee OneDrives and dead Teams quietly filling your tenant.

22 Jun 2026 · 4 min read
Cyber

How to find "anyone-with-the-link" sharing in Microsoft 365

Anonymous sharing links are the most common quiet data-exposure in SharePoint and OneDrive. Here is how to find them, judge the risk, and lock them down.

12 Jun 2026 · 5 min read

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