Record 29.7 Tbps DDoS Attack Linked to AISURU Botnet with up to 4 Million Infected Hosts

The Hacker News

December 4, 2025 at 6:52 AM

Actively Exploited

Summary

Cloudflare has reported the largest DDoS attack ever recorded, reaching 29.7 Tbps, attributed to the AISURU botnet, which has been linked to multiple significant attacks over the past year. This incident underscores the growing threat posed by botnets and the need for robust cybersecurity measures to mitigate such high-volume attacks.

Original Article Summary

Cloudflare on Wednesday said it detected and mitigated the largest ever distributed denial-of-service (DDoS) attack that measured at 29.7 terabits per second (Tbps). The activity, the web infrastructure and security company said, originated from a DDoS botnet-for-hire known as AISURU, which has been linked to a number of hyper-volumetric DDoS attacks over the past year. The attack lasted for 69

Impact

Not specified

In the Wild

Yes

Timeline

Newly disclosed

Remediation

Implement DDoS mitigation strategies, enhance network security protocols, and monitor for unusual traffic patterns.

Read Original Article

Related Coverage

Week in review: React, Node.js flaw patched, ransomware intrusion exposes espionage foothold

Help Net Security

The article highlights recent developments in cybersecurity, including a patched flaw in React and Node.js, as well as a ransomware intrusion that has revealed an espionage foothold. These incidents underscore the ongoing challenges in securing software frameworks and the risks posed by cyber threats to sensitive information.

Dec 7, 2025

Attackers launch dual campaign on GlobalProtect portals and SonicWall APIs

Security Affairs

A hacking campaign has been targeting GlobalProtect logins and scanning SonicWall APIs since December 2, 2025. The attack is significant due to its scale, involving over 7,000 IP addresses linked to a German hosting provider, indicating a coordinated effort that poses a serious threat to the security of affected systems.

Dec 6, 2025

Researchers Uncover 30+ Flaws in AI Coding Tools Enabling Data Theft and RCE Attacks

The Hacker News

Over 30 security vulnerabilities have been identified in AI-powered Integrated Development Environments (IDEs), collectively termed IDEsaster. These vulnerabilities combine prompt injection techniques with legitimate features, allowing for potential data exfiltration and remote code execution, posing significant risks to developers and organizations using these tools.

Dec 6, 2025

Your smart home is at risk - 6 ways to protect your devices from attack

Attackers hit React defect as researchers quibble over proof

CyberScoop

The article discusses a React vulnerability that has been reportedly exploited by attackers, leading to a debate among researchers about the existence of concrete evidence for these attacks. While some researchers claim to have seen proof of concepts demonstrating the exploit, others argue that there is insufficient evidence of actual attacks occurring, complicating the response efforts.

Dec 5, 2025

Barts Health NHS discloses data breach after Oracle zero-day hack

BleepingComputer

Barts Health NHS Trust has reported a data breach involving the Clop ransomware group, which exploited a vulnerability in the Oracle E-business Suite software to steal files from their database. This incident highlights the ongoing risks associated with unpatched software vulnerabilities and the potential for significant data loss in healthcare organizations.

Dec 5, 2025