Netherlands
NLD
DDoS attacks on SURF disrupt connectivity across Dutch education and research institutions
SURF reported large-scale DDoS attacks against its network on 15-17 January 2025. The attacks caused slow or unavailable connectivity at education, research and healthcare institutions across the Netherlands. Maastricht University reported periods without internet, Fontys' network was unreachable for hours for approximately 43,000 students and staff, and some institutions postponed examinations because of the disruption.
74
Estimated severity
74 / 100
98
Source reliability
98 / 100
Approximate Date
15/01/2025
Targeted Company
SURF
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
MAASTRICHT UNIVERSITY (Telecommunications provider)FONTYS UNIVERSITY OF APPLIED SCIENCES (Telecommunications provider)
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
Netherlands
Affected countries
Netherlands
Impacted regions
No information
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Service degradationService unavailabilityDownstream customer disruption
Affected sectors
TelecommunicationsEducation & Research
Affected departments
No information
Attack Profile
Attack types
Distributed denial of service
Attributed threat actors
No information
Sources
Incident Sources