United States
USA
Bandwidth DDoS attacks disrupt cloud calling and messaging services
A distributed denial-of-service attack on Bandwidth began September 25, 2021, interrupting voice and messaging traffic in portions of its U.S. communications network and affecting downstream cloud telephony providers. Network performance stabilized around September 29 with some continuing intermittent disruptions; Bandwidth later reported approximately USD 10 million in 2021 revenue reduction from lost transaction volume and credits.
88
Estimated severity
88 / 100
98
Source reliability
98 / 100
Approximate Date
2021-09-25
Targeted Company
BANDWIDTH
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
DIALPAD (Telecommunications provider)RINGCENTRAL (Telecommunications provider)TWILIO (Telecommunications provider)
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)
$10M
Impact types
Downstream customer disruptionService degradationService unavailability
Affected sectors
Technology & IT ServicesTelecommunications
Affected departments
Information Technology
Attack Profile
Attack types
Distributed denial of service
Attributed threat actors
No information
Sources
Incident Sources
sec.govhttps://www.sec.gov/Archives/edgar/data/1514416/000151441622000054/band-20211231.htmsec.govhttps://www.sec.gov/Archives/edgar/data/1514416/000151441621000273/band-20211005.htmbandwidth.comhttps://www.bandwidth.com/newsroom/bandwidth-issues-statement-on-recent-ddos-attack/siliconangle.comhttps://siliconangle.com/2021/09/28/voip-provider-bandwidth-com-suffers-outages-ddos-attack/