AI governance for Microsoft 365 Copilot defines which information AI can use, who can use it and how activity is monitored. Microsoft 365 Copilot respects existing permissions, so employees may find an overshared payroll spreadsheet through AI. The practical priority is permission hygiene, supported by sensitivity labels, data loss prevention,...
A denied decision doesn’t always remove the underlying permission. These reviews help identify unnecessary group memberships, application assignments and privileged access, but removal depends on the resource type, review settings and how access was originally granted. Start by identifying those access paths, then configure reviewers, recurrence and enforcement. The useful...
Shared mailbox security risks build up slowly. A shared mailbox can be safe on the day you create it. Over time, permissions pile up, people change roles, forwarding rules appear, nobody remembers why the mailbox exists, and the list of who can read it grows longer than anyone can explain....
Most Microsoft 365 leaver processes fail because sign-in is blocked but sessions are not revoked, data is removed before ownership is transferred, or access through devices, sharing links and connected apps is overlooked. The sequence matters. Step one, cut live access properly Block sign-in, revoke sessions in Microsoft Entra ID...
Microsoft detected approximately 7.6 billion email-based phishing threats during the second quarter of 2026, down from about 8.3 billion in Q1. The decline is encouraging, but Microsoft’s data shows that attackers are changing tactics rather than disappearing. QR-code and CAPTCHA-gated phishing fell sharply, while Microsoft Teams-based social engineering and voice...
If you share files from SharePoint or OneDrive with clients, suppliers or contractors, some older authenticated sharing links may stop working during Microsoft’s 2026 external-sharing transition. Microsoft began enabling SharePoint and OneDrive integration with Microsoft Entra B2B across all tenants in May 2026. The rollout is automatic, and administrators cannot...
Microsoft has added stronger security and governance controls for Microsoft 365 Copilot, but the biggest risk is still your own Microsoft 365 data estate. Copilot does not create new permissions. It works with the files, chats, emails and SharePoint content a user is already allowed to access, as Microsoft explains...
Microsoft’s June 2026 Patch Tuesday was unusually large, with security teams counting around 200 to 206 Microsoft vulnerabilities depending on whether additional Microsoft components and advisory categories are included. It was widely treated as one of the largest Patch Tuesday releases since Microsoft began the programme in 2003. For a...
Microsoft’s Workplace Check-in is being added to Microsoft Places and Teams to help colleagues see when someone is working in the office. It can update a person’s work location when Teams detects that their desktop device is connected to a configured office Wi-Fi network, or to a supported desk peripheral....
On Monday 1 June 2026, some Microsoft 365 users could not open files in Office for the web or Microsoft Teams. Microsoft tracked the issue as MO1329446 and said the impact was later resolved. The next day, Exchange Online suffered a separate mail-flow incident that caused delayed or failed email...
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