United States
USA
Sinclair Broadcast Group ransomware disrupts television operations and advertising delivery
Sinclair identified an incident on October 16 and ransomware encryption on October 17, 2021, disrupting operational broadcasting networks and forcing some stations to alter content delivery. Sinclair disclosed approximately USD 63 million in lost fourth-quarter advertising revenue plus USD 11 million in related costs, with about USD 24 million estimated unrecoverable net loss.
88
Estimated severity
88 / 100
96
Source reliability
96 / 100
Approximate Date
2021-10-17
Targeted Company
SINCLAIR BROADCAST
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
No information
Operational Impact
Duration
No information
Financial impact (USD M)
$24M
Impact types
Operational disruptionService degradation
Affected sectors
Media & Entertainment
Affected departments
Information Technology
Attack Profile
Attack types
Data exfiltrationRansomware
Attributed threat actors
No information
Sources
Incident Sources
sec.govhttps://www.sec.gov/Archives/edgar/data/912752/000091275222000024/sbgi-20211231.htmsec.govhttps://www.sec.gov/Archives/edgar/data/912752/000119312521300540/d245680dex991.htmbleepingcomputer.comhttps://www.bleepingcomputer.com/news/security/sinclair-tv-stations-crippled-by-weekend-ransomware-attack/