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#Outlook

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CL
LOW
Cloud Security

Microsoft Outlook iOS Authentication Issues: Remediation and Risks

Microsoft resolves global Outlook.com outage but requires iOS Mail app users to re-authenticate. Learn how to secure accounts and mitigate phishing risks.

Runtime Rebel Intel
4 min read·Apr 28, 2026
TH
CRITICAL
Threat Intel

GopherWhisper APT Abuses Outlook and Slack for Stealthy C2

Newly discovered GopherWhisper APT group uses a Go-based toolkit and legitimate SaaS platforms like Slack and Outlook to conduct espionage against governments.

Runtime Rebel Intel
3 min read·Apr 23, 2026
TH
INFO
Threat Intel

Classic Outlook Bug Halts Outlook.com Email Delivery for Users

Microsoft is actively investigating a Classic Outlook bug preventing some users from sending emails via Outlook.com. This impacts email delivery and communication.

Runtime Rebel Intel
4 min read·Apr 2, 2026
CL
MEDIUM
Cloud Security

Exchange Online Service Change: Solving Outlook for Mac Access Issues

Microsoft addresses a service disruption in Exchange Online caused by virtual account updates affecting Outlook for Mac and mobile device connectivity.

Runtime Rebel Intel
3 min read·Mar 23, 2026
CL
MEDIUM
Cloud Security

Microsoft Exchange Online Outage: Troubleshooting Access Failures

Microsoft Exchange Online service disruption prevents global users from accessing mailboxes and calendars. Review technical impacts and mitigation steps.

Runtime Rebel Intel
3 min read·Mar 16, 2026
VU
LOW
Vulnerabilities

Microsoft Investigating Mouse Pointer Bug in Classic Outlook

Microsoft confirms a bug in classic Outlook causing the mouse cursor to disappear during email composition. Discover the technical details and mitigation steps.

Runtime Rebel Intel
4 min read·Feb 24, 2026