DDoS (Distributed Denial of Service) Attack:

DDoS (Distributed Denial of Service) Attack: Overwhelming a server with traffic to prevent legitimate users from accessing a network, site, or system.

A Distributed Denial of Service (DDoS) attack is a malicious attempt to disrupt a server, service, or network by overwhelming it with a flood of Internet traffic from multiple compromised systems (a botnet). Unlike DoS, which uses one machine, DDoS uses many, making it hard to stop.

Key Aspects of DDoS Attacks:

Mechanism: Attackers use malware to create a “botnet” of infected IoT devices, computers, and servers to send massive, simultaneous requests to a target, exhausting its resources.

Common Usage Examples & Types:

Volumetric Attacks: Flooding network bandwidth (e.g., DNS Amplification, UDP floods).
Protocol Attacks: Consuming server resources (e.g., SYN floods, Ping of Death).
Application Layer Attacks: Targeting specific website functions (e.g., HTTP floods).
“Low and Slow” Attacks: Sending small amounts of traffic slowly to keep a server busy without triggering defenses.
Synonyms/Related Terms: Volumetric attack, Botnet attack, Flood attack, Network exhaustion attack, Application-layer attack.
Impact: Causes service outages, reduced performance, financial losses, and reputational damage.

DDoS attacks can last for hours or days, targeting infrastructure to disrupt operations for extortion, hacktivism, or competitive gain.

Current DDoS Example: (Sept 2025)

A major telecommunications threat, which included capabilities for a massive Distributed Denial-of-Service (DDoS) attack targeting New York City’s cellular infrastructure, was thwarted by the U.S. Secret Service in September 2025.

Here are the key details regarding this incident:

Discovery and Timing: The Secret Service dismantled a network of electronic devices across the New York tri-state area around September 23, 2025, just before the United Nations General Assembly.
The Threat: The setup consisted of over 300 SIM servers and 100,000 SIM cards, which could have been used to overwhelm cell towers, jam 911 calls, and create significant communication disruptions.
Potential Impact: Officials described the threat as capable of creating a “cellular blackout” in the city, similar to what occurred after 9/11, by flooding the network with traffic and disabling phones.
Targets: The network was used to issue threats against senior U.S. government officials and represented an imminent threat to protective operations.
Origin: The investigation indicated a “well-funded, highly organized enterprise” with potential links to nation-state threat actors and criminal groups.

Note: This event was a localized, sophisticated telecom disruption threat rather than a standard, public-facing internet DDoS attack. (This article includes information from Google Gemini)