Ukraine
UKR
Ukrtelecom limits services amid powerful cyberattack; ~15-hour national disruption
On 28 March 2022, a powerful cyberattack severely disrupted Ukrtelecom’s network, with national connectivity dropping to about 13% of pre-war levels. To protect critical infrastructure, the operator restricted services to most private and business users for roughly 15 hours before gradual restoration, materially impacting downstream customers.
70
Estimated severity
70 / 100
95
Source reliability
95 / 100
Approximate Date
28/03/2022
Targeted Company
UKRTELECOM
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
Ukraine
Affected countries
Ukraine
Impacted regions
Europe · Ukraine
Operational Impact
Duration
1 day
Financial impact (USD M)
No information
Impact types
Service unavailabilityOperational disruptionDownstream customer disruptionService degradation
Affected sectors
Telecommunications
Affected departments
Information Technology
Attack Profile
Attack types
Distributed denial of serviceDenial of service
Attributed threat actors
No information
Sources
Incident Sources
reuters.comhttps://www.reuters.com/business/media-telecom/ukrainian-telecom-companys-internet-service-disrupted-by-powerful-cyberattack-2022-03-28datacenterdynamics.comhttps://www.datacenterdynamics.com/en/news/ukraine-ukrtelecom-hit-by-15-hour-outage-due-to-cyberattackbbc.comhttps://www.bbc.com/news/60854881