SYN Flood

nouncandidate·updated May 12, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

A denial of service attack that sends a host more TCP SYN packets (request to synchronize sequence numbers, used when opening a connection) than the protocol implementation can handle.

MWE

Classifications

per-axis with provenance

Entity Type

Threat0%rule-basedmulti_axis_classifier_low_confidence.v1

?unassignedlast reviewed —

Sensitivity

—85%llm-generatedllm:claude-haiku-4-5

?unassignedlast reviewed —

Information Class

—90%llm-generatedllm:claude-haiku-4-5

?unassignedlast reviewed —

Variants

3 surface forms

plural: SYN Floods
possessive: SYN Flood's
pluralpossessive: SYN Floods'

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