Denial of Service
Best of 2025: NOT-So-Great Firewall: China Blocks the Web for 74 Min.
Richi Jennings | | censorship, china, Denial of Service, Denial of Service (DoS) attacks, denial of service attacks, denial of service vulnerability, Denial-of-Service (DoS), Government Censorship, Great Firewall of China, HTTPS, HTTPS connection, internet censorship, online censorship, Pakistan, Peoples Republic of China, port 443, SB Blogwatch, State Censorship, TCP, TCP/IP, The Great Firewall, Transmission Control Protocol (TCP) vulnerabilities
HTTPS connections on port 443 received forged replies. Chinese web users couldn’t access websites outside the People’s Republic yesterday. The outage lasted an hour and a quarter—with no explanation. Nobody’s sure whether it ...
Security Boulevard
Deliberate Internet Shutdowns
For two days in September, Afghanistan had no internet. No satellite failed; no cable was cut. This was a deliberate outage, mandated by the Taliban government. It followed a more localized shutdown ...
US Disrupts Massive Cell Phone Array in New York
Bruce Schneier | | cell phones, cyberattack, Denial of Service, Infrastructure, Telecom, Uncategorized
This is a weird story: The US Secret Service disrupted a network of telecommunications devices that could have shut down cellular systems as leaders gather for the United Nations General Assembly in ...
NOT-So-Great Firewall: China Blocks the Web for 74 Min.
Richi Jennings | | censorship, china, Denial of Service, Denial of Service (DoS) attacks, denial of service attacks, denial of service vulnerability, Denial-of-Service (DoS), Government Censorship, Great Firewall of China, HTTPS, HTTPS connection, internet censorship, online censorship, Pakistan, Peoples Republic of China, port 443, SB Blogwatch, State Censorship, TCP, TCP/IP, The Great Firewall, Transmission Control Protocol (TCP) vulnerabilities
Xi Whiz: HTTPS connections on port 443 received forged replies ...
Security Boulevard
Largest DDoS Attack to Date
It was a recently unimaginable 7.3 Tbps: The vast majority of the attack was delivered in the form of User Datagram Protocol packets. Legitimate UDP-based transmissions are used in especially time-sensitive communications, ...
No, Elon — X DDoS was NOT by Ukraine
Richi Jennings | | Cloudflare DDoS Protection, cyber attacks during ukraine war, cyber attacks russia, Dark Storm Team, ddos, DDoS attack, Denial of Service, Denial of Service (DoS) attacks, denial of service attacks, denial of service vulnerability, distributed denial of service, Distributed denial of service (DDoS) attacks, distributed denial of service attack, Elon Musk, elon musk twitter, hacktivism ukraine cyber-attacks, Russia, Russia-Ukraine, russia-ukraine conflict, Russia's War on Ukraine, SB Blogwatch, social media, Social Media Attack, social media attacks, social media cyber attacks, Social Media Cybercrime, Social Media Exploits, Ukraine, ukraine conflict, Ukraine Cyber War, Ukraine-Russia War, Ukraine/European Security, X
X marks the botnet: Outage outrage was a Ukrainian cyberattack, implies our favorite African billionaire comedy villain ...
Security Boulevard
Oracle WebLogic Server Remote Code Execution and Denial of Service Vulnerability (CVE-2025-21535/CVE-2025-21549)
NSFOCUS | | Blog, CVE-2025-21535, CVE-2025-21549, Denial of Service, Emergency Response, Oracle Vulnerability, Oracle WebLogic Server, Remote Code Execution
Overview Recently, NSFOCUS CERT detected that Oracle has released a security announcement, in which the remote code execution and denial of service vulnerabilities of Oracle WebLogic Server have been fixed. Affected users ...
Robot Dog Internet Jammer
Bruce Schneier | | Denial of Service, DHS, Internet of things, law enforcement, robotics, Uncategorized
Supposedly the DHS has these: The robot, called “NEO,” is a modified version of the “Quadruped Unmanned Ground Vehicle” (Q-UGV) sold to law enforcement by a company called Ghost Robotics. Benjamine Huffman, ...
HALT! I am Reptar! Intel CPU Bug Panics Cloud Providers
Richi Jennings | | Cloud, Cloud IaaS, cpu, CPU attack, CPU flaw, CPU microcode, cpu vulnerability, Denial of Service, denial-of-service attack, DoS, IaaS, IaaS Security, Infrastructure as a Service (IaaS), Intel, Intel CPU, INTEL-SA-00950, Microcode Flaws, Redundant Prefix Issue, Reptar, SB Blogwatch, x86, x86_64
IaaS Catch Fire: Google and Intel fuzz, find and fix a fabulous bug. Next up: More of the same ...
Security Boulevard
What To Look for In DDoS Protection Services
A Sophisticated Distributed Denial-of-Service (DDoS) Attack is a cyberattack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting the ...

