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Largest DDoS Attack to Date

ID: 471016ed-b5f7-547b-a4a9-c72f2caae602

STIX ID: report--471016ed-b5f7-547b-a4a9-c72f2caae602

Feed Name: Schneier on Security

Threat Score
70/100

Date Published: 2025-06-23

Date Updated: 2026-04-19

Author: Bruce Schneier

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A news report describes a record 7.3 Tbps Distributed Denial-of-Service (DDoS) attack delivered primarily via UDP floods, explaining that such floods overwhelm targets by sending large volumes of UDP datagrams to multiple ports and saturating network or host resources, resulting in denial of legitimate traffic.

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