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Microsoft 365

All articles tagged with #microsoft 365

Microsoft ends Office 2021 support on Oct. 13, pushing users to subscriptions
technology3 days ago

Microsoft ends Office 2021 support on Oct. 13, pushing users to subscriptions

Microsoft will cease all support for Office 2021 on October 13, 2026. Users of the perpetual license version will no longer receive security patches, bug fixes, or technical assistance. While the software will continue to function, Microsoft warns that running unsupported versions exposes users to significant security risks. The company is urging consumers and businesses to upgrade to Microsoft 365 subscriptions or the newer Office 2024 perpetual license to maintain protection and access to current features.

Microsoft 365 EWS Cutoff Threatens Mac Mail Sync
technology7 days ago

Microsoft 365 EWS Cutoff Threatens Mac Mail Sync

Microsoft began disabling Exchange Web Services (EWS) by default in Exchange Online on October 1, 2026. This move impacts Apple Mail and Calendar on Mac, which still rely on EWS for syncing Microsoft 365 work accounts. While the rollout is phased, EWS will be permanently shut down on April 1, 2027. Apple is working with Microsoft to migrate to the Microsoft Graph API in a future macOS 27 update, but no specific timeline has been confirmed.

Microsoft rebrands Copilot as a 'new OS for work' with unified app, new pricing
technology12 days ago

Microsoft rebrands Copilot as a 'new OS for work' with unified app, new pricing

Microsoft has unveiled a major overhaul of its Copilot application, positioning it as a 'new operating system for work' rather than a simple chatbot. The updated app integrates Home, Code, and Autopilot features alongside full versions of Word, Excel, and PowerPoint. This move aims to compete with OpenAI and Anthropic by offering a unified platform for chat, coding, and autonomous agents, backed by a new hybrid pricing model that combines per-user subscriptions with usage-based billing for advanced AI tasks.

Excel breaks decades-old single-value rule with new multi-cell array feature
technology13 days ago

Excel breaks decades-old single-value rule with new multi-cell array feature

Microsoft is testing a major structural change in Excel that allows single cells to store lists, arrays, and nested arrays, breaking the decades-old one-value-per-cell limitation. The feature, currently in beta for Microsoft 365 Insiders, introduces new functions like HAS, HAS ANY, and FLATTEN to manage complex data structures. While it enables compact data handling and easier filtering, support for conditional formatting, pivot tables, and charts remains limited.

Microsoft Launches Unified Copilot Super App with Coding and Agent Features
technology14 days ago

Microsoft Launches Unified Copilot Super App with Coding and Agent Features

Microsoft has officially launched its redesigned Copilot 'super app,' consolidating AI chat, coding, and autonomous agents into a single interface for enterprise users. The new app features three primary tabs: Home, which merges chat and delegated tasks; Code, which allows non-technical users to build applications using natural language; and Autopilot, a persistent agent that handles recurring workflows. This move follows months of consolidation efforts and aims to compete with rivals like Anthropic by offering a unified, usage-based pricing model.

Passkey phishing surge targets Microsoft 365 data in extortion-linked campaign
technology27 days ago

Passkey phishing surge targets Microsoft 365 data in extortion-linked campaign

Microsoft warns that extortion-linked groups are using passkey- and SSO-themed social engineering (AiTM and device-code phishing) to compromise Microsoft 365 accounts, perform reconnaissance with Microsoft Graph, and exfiltrate data from SharePoint Online and OneDrive over hours to days, often registering convincing phishing domains and adding attacker-controlled authentication methods; defenders should deploy phishing-resistant MFA, revoke sessions, reset credentials, remove attacker-added methods, and restrict sensitive cloud resources to managed devices.

Executive Vishing Campaign Cracks Microsoft 365 with MFA Token Theft
technology1 month ago

Executive Vishing Campaign Cracks Microsoft 365 with MFA Token Theft

Threat actors impersonating IT desk staff use vishing and an adversary-in-the-middle token theft flow to harvest Microsoft 365 credentials and MFA approvals, enabling access to authenticated sessions via proxy replay; they exfiltrate data from SharePoint, OneDrive, Exchange, and Box, targeting executives across sectors. Defenses include phishing-resistant MFA, Conditional Access, restricting SharePoint data access, and employee training on vishing risks.

BigBear 2.0 Phishing Service Skips MFA Across 258 Microsoft 365 Organizations
cybersecurity1 month ago

BigBear 2.0 Phishing Service Skips MFA Across 258 Microsoft 365 Organizations

A CloudSEK report details BigBear 2.0, a phishing-as-a-service framework, bypassing MFA for 258 Microsoft 365 organizations and stealing 5,137 credentials (including 474 MFA-bypassed authentications) plus 4,148 session cookies across 3,331 victims in 40+ countries. The operation used a Evilginx2-based MITM setup with an 'offy' proxy, geo-matched residential proxies, and custom JavaScript to weaken FIDO2/WebAuthn, enabling attackers to hijack sessions after victims authenticated. The admin panel remained online while the phishing infrastructure was offline for ~three weeks. Recommendations include resetting exposed passwords, revoking active sessions, refreshing tokens, enforcing phishing-resistant FIDO2/WebAuthn, and applying Conditional Access with managed devices.

Exchange Online outage delays emails as Microsoft investigates root cause
technology1 month ago

Exchange Online outage delays emails as Microsoft investigates root cause

Microsoft is investigating an ongoing Exchange Online outage that is delaying emails to and from external domains and causing intermittent 'Server busy' errors. Anti-spam protections may be contributing to the impact, and a remediation timeline has not been provided. The incident is tracked as EX1467029, with Microsoft continuing telemetry analysis to determine the underlying cause. Previous outages in April and June are noted in context.

Microsoft 365 outage extends into second day, hitting Teams, Copilot and more
technology1 month ago

Microsoft 365 outage extends into second day, hitting Teams, Copilot and more

Microsoft 365 has suffered a global outage into its second day, preventing access to Teams, Copilot, OneDrive and Exchange Online. Downdetector data showed about a third of users facing problems, with login issues and site access failures. Microsoft confirmed degraded functionality across Exchange Online and other services and said it is applying a targeted authentication component fix while monitoring telemetry for recovery. The issue stems from a core authentication configuration affecting multiple services, with remediation expected to restore authentication, connectivity and search to normal levels as it progresses, though some features such as mail and calendar syncing remain impacted during the outage.

Outlook Outage Hits Thousands as Exchange Online Struggles
technology1 month ago

Outlook Outage Hits Thousands as Exchange Online Struggles

Thousands reported Outlook outages on Aug. 31 as Microsoft noted degraded Exchange Online service; Downdetector tracked peak reports around noon, with recovery actions underway and varying restoration times. Concurrent ChatGPT outages also occurred but were resolved by about 4 p.m., while Microsoft continued remediation with service health updates.

Microsoft hit by broad Exchange Online outage across 365 apps
technology1 month ago

Microsoft hit by broad Exchange Online outage across 365 apps

Microsoft acknowledged a widespread outage affecting Exchange Online and several Microsoft 365 services (including Outlook, Teams, and OneDrive) after users reported access issues; the company says the root cause is a core authentication configuration problem and is actively testing a remediation while recovery progresses, with admins advised to monitor updates in the Admin Center as email delivery gradually returns and some features like search may remain affected.

Auth glitches halt Microsoft 365 services, hitting Exchange Online and linked apps
technology1 month ago

Auth glitches halt Microsoft 365 services, hitting Exchange Online and linked apps

Microsoft is investigating a widespread outage causing authentication failures, connectivity issues, and email delays in Exchange Online, with broader impact on OneDrive for Business, SharePoint Online, Teams, Purview, and Defender XDR. The incident, tracked as MO1465074 (formerly EX1464935), affects tens of thousands of users per Downdetector. Microsoft says a common authentication/protocol failure pattern is under investigation and notes a core authentication configuration issue is being addressed with manual server resets as the scope and remediation continue.

Microsoft rebrands its roadmap to AI at Work, unifying AI updates across apps
technology1 month ago

Microsoft rebrands its roadmap to AI at Work, unifying AI updates across apps

Microsoft has renamed the Microsoft 365 Roadmap to the AI at Work Roadmap, aiming to centralize AI-powered innovations across Word, Excel, PowerPoint, Outlook and beyond. The change is live now, with Microsoft saying that starting September 2026, Dynamics 365, Power Platform, and Dataverse roadmaps will also publish there, creating a single destination for AI-related updates—though it may confuse IT admins who were tracking only Office products.

Microsoft 365 search outage linked to deployment bug receives fix
technology1 month ago

Microsoft 365 search outage linked to deployment bug receives fix

Microsoft has confirmed a search outage affecting Microsoft 365 apps (Outlook on the web/desktop, SharePoint Online, and OneDrive) caused by a recent deployment that created resource utilization inefficiencies. A fix has been deployed to reduce pressure and restore service for affected users; Microsoft did not specify which regions were impacted. The incident adds to a history of past outages in the ecosystem.