China
CHN
Large-scale cyberattack degrades DeepSeek service and restricts new registrations
On 27 January 2025, DeepSeek reported large-scale malicious attacks against its services and temporarily limited new-user registrations to preserve service for existing users. Reporting also documented degraded service during the incident, while existing users were generally able to log in. The attack mechanism was not publicly established.
65
Estimated severity
65 / 100
88
Source reliability
88 / 100
Approximate Date
27/01/2025
Targeted Company
DEEPSEEK
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
China
Affected countries
China
Impacted regions
No information
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Service degradation
Affected sectors
Technology & IT Services
Affected departments
Information Technology
Attack Profile
Attack types
No information
Attributed threat actors
No information
Sources
Incident Sources
reuters.comhttps://www.reuters.com/technology/cybersecurity/deepseek-limits-registrations-due-cyber-attack-2025-01-27/apnews.comhttps://apnews.com/article/be414acadbf35070d7645fe9fbd8f464theregister.comhttps://www.theregister.com/security/2025/01/27/deepseek-suspends-new-registrations-amid-cyberattack/1306207