---
type: "term"
title: "DDoS (Distributed Denial of Service)"
description: "An attack where multiple compromised systems (typically a botnet) simultaneously flood a target with traffic or requests."
resource: "tlctc:term:ddos-distributed-denial-of-service"
tags:
  - "glossary"
---
# DDoS (Distributed Denial of Service)

An attack where multiple compromised systems (typically a botnet) simultaneously flood a target with traffic or requests. In TLCTC: maps to `#6 Flooding Attack` — the primary mechanism is volume or intensity exceeding finite capacity. The "distributed" aspect describes the attack infrastructure, not the generic vulnerability. Sub-types include SYN Flood, UDP Flood, HTTP Flood, ICMP Flooding, NTP/DNS Amplification, and Slowloris. The underlying botnet is the result of prior `#7 Malware` infections.

**Reference:** V1.9.1 Buzz-Word Refinement (#6)

See also: Flooding Attack (#6), Botnet, SYN Flood, Amplification Attack