Netherlands
NLD
OSG Hengelo servers encrypted in ransomware attack; phones/Wi‑Fi down
OSG Hengelo discovered a ransomware attack on 30/05/2023. Servers were encrypted and the school group disconnected systems from the internet, with phone lines and Wi‑Fi unavailable during recovery. A forensic IT firm was engaged and the incident was reported to the Dutch Data Protection Authority.
40
Estimated severity
40 / 100
84
Source reliability
84 / 100
Approximate Date
30/05/2023
Targeted Company
OSG HENGELO
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
Netherlands
Affected countries
Netherlands
Impacted regions
No information
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Service unavailabilityOperational disruption
Affected sectors
Education & Research
Affected departments
Information Technology
Attack Profile
Attack types
Ransomware
Attributed threat actors
No information
Sources
Incident Sources
osghengelo.nlhttps://osghengelo.nl/praktische-informatie/cyber-incident1twente.nlhttps://www.1twente.nl/artikel/3013106/onderzoek-ransomware-aanval-bij-osg-hengelo-nog-in-volle-gangoost.nlhttps://www.oost.nl/nieuws/2232656/onderwijsstichting-osg-hengelo-slachtoffer-van-hack-servers-versleuteld-na-aanval-met-gijzelsoftwaretweakers.nethttps://tweakers.net/nieuws/210398/middelbare-scholen-in-hengelo-zijn-getroffen-door-ransomware-lessen-gaan-door.html