United States
USA
Seattle Public Library ransomware attack disrupts library services for months
On 25/05/2024, Seattle Public Library detected a ransomware event affecting its technology systems and took systems fully offline. The incident disrupted public and staff computers, the catalog and loaning system, Wi-Fi, printing, e-books and other digital services. Services were restored progressively over the following months, with the library reporting restoration of the affected public services in early September.
73
Estimated severity
73 / 100
96
Source reliability
96 / 100
Approximate Date
25/05/2024
Targeted Company
SEATTLE PUBLIC LIBRARY
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
United States
Affected countries
United States
Impacted regions
Seattle Washington · United States
Operational Impact
Duration
102 days
Financial impact (USD M)
No information
Impact types
Service unavailabilityService degradationOperational disruptionBacklog or order accumulation
Affected sectors
Government & Public Administration
Affected departments
Information TechnologyCustomer Service
Attack Profile
Attack types
Ransomware
Attributed threat actors
No information
Sources
Incident Sources
blog.spl.orghttps://blog.spl.org/2024/05/28/an-update-about-access-to-library-technology-systems/seattle.govhttps://www.seattle.gov/documents/Departments/InvestorRelations/2025%20Documents/Seattle%20Water%20Rev%202025%20OS.pdfgeekwire.comhttps://www.geekwire.com/2024/cybersecurity-attack-on-seattle-public-library-impacts-multiple-tech-systems-and-online-services/sans.orghttps://www.sans.org/newsletters/newsbites/xxvi-42