The Washington Post Data Breach Impacts Nearly 10K Employees and Contractors
The Washington Post experienced a data breach affecting approximately 9,720 current and former employees and contractors. The incident stemmed from the exploitation of a zero-day vulnerability in Oracle's E-Business Suite software by the Clop ransomware group between July and August 2025. Exposed data included names, bank account numbers, routing numbers, Social Security numbers, and tax ID numbers. The company began notifying affected individuals on November 12, 2025.
Signal context
First seen: Nov 13, 2025
Last updated: Jun 25, 2026
Status: Public signal
Key points
- 9,720 current and former employees and contractors affected.
- Exploitation of a zero-day vulnerability in Oracle E-Business Suite.
- Attributed to the Clop ransomware group.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Information
Likely country: 🇺🇸 United States
inferred from source domains
Watch ransomware, endpoint compromise and business interruption exposure.
- Source type: outside the affected organization
Impact area: Confidentiality, Availability
Likely asset: User or customer data
- 26 signals in the same sector
- 100 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
This Week's Cybersecurity News: November 14th, 2025 - Applied Techhttps://www.appliedtech.us/resource-hub/this-week-in-cybersecurity-nov14-2025/Public source from appliedtech.us.
Washington Post Says Nearly 10,000 Employees Impacted by Oracle Hack - SecurityWeekhttps://www.securityweek.com/topics/data-breach/page/8/Public source from securityweek.com.
November 2025: Major Cyber Attacks, Ransomware Attacks, Data Breaches - Cyber Management Alliancehttps://www.cm-alliance.com/cybersecurity-blog/november-2025-major-cyber-attacks-ransomware-attacks-data-breachesPublic source from cm-alliance.com.
Washington Post Data Breach One of 40+ Claimed by CL0P - The Cyber Expresshttps://thecyberexpress.com/washington-post-data-breach-cl0p/Public source from thecyberexpress.com.
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