Microsoft Exchange Online — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
8
occurrences
First Seen
January 29, 2026
Last Seen
August 21, 2026

Related Threat Clusters

Recent Intelligence Reports

  • Threataft Blog News Aug 21, 2026 CVE-2026-65801: Microsoft Exchange Online SSRF - CVSS 10 threataft.com Open source — threataft.com · August 21, 2026
  • June 2026 Monthly Patch — Csa.Sg · June 10, 2026
  • Ghost — Gbhackers · June 9, 2026
  • Payroll pirates are conning help desks to steal workers' identities and redirect paychecks — www.theregister.com · April 11, 2026
  • Payroll pirates conned the help desk, stole employee's pay — Theregister · February 11, 2026
  • Payroll pirates are conning help desks to steal workers' identities and redirect paychecks — Theregister · February 11, 2026
  • Microsoft Exchange Online Flags Customers Legitimate Email as Phishing — Cybersecuritynews · February 9, 2026
  • Microsoft Exchange Online to Deprecate SMTP AUTH Basic Authentication for Tenants — Cybersecuritynews · January 29, 2026

CVSS v3.1 Breakdown