Tag DDoS

Cloudflare Successfully Thwarts Unprecedented 11.5 Tbps DDoS Attack

Cloudflare announced on Tuesday that it effectively mitigated a record-breaking volumetric distributed denial-of-service (DDoS) attack that peaked at 11.5 terabits per second (Tbps). In a recent post on X, the web infrastructure and security provider revealed, “In recent weeks, we’ve autonomously blocked numerous hyper-volumetric DDoS attacks, with the largest reaching peaks of 5.1 Bbps and 11.5 Tbps.” The attack, primarily a UDP flood originating from Google Cloud, lasted only about 35 seconds, highlighting the company’s robust defense mechanisms at work. Volumetric DDoS attacks aim to overwhelm a target with excessive traffic, causing server slowdowns or failures, often resulting in network congestion, packet loss, and service disruptions. Typically, these attacks are executed using botnets controlled by threat actors.

Cloudflare Defends Against Unprecedented 11.5 Tbps DDoS Attack On September 3, 2025, Cloudflare announced that it successfully thwarted a staggering volumetric distributed denial-of-service (DDoS) attack, which peaked at an astonishing 11.5 terabits per second (Tbps). The web infrastructure and security firm reported that the attack was part of a series…

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Cloudflare Successfully Thwarts Unprecedented 11.5 Tbps DDoS Attack

Cloudflare announced on Tuesday that it effectively mitigated a record-breaking volumetric distributed denial-of-service (DDoS) attack that peaked at 11.5 terabits per second (Tbps). In a recent post on X, the web infrastructure and security provider revealed, “In recent weeks, we’ve autonomously blocked numerous hyper-volumetric DDoS attacks, with the largest reaching peaks of 5.1 Bbps and 11.5 Tbps.” The attack, primarily a UDP flood originating from Google Cloud, lasted only about 35 seconds, highlighting the company’s robust defense mechanisms at work. Volumetric DDoS attacks aim to overwhelm a target with excessive traffic, causing server slowdowns or failures, often resulting in network congestion, packet loss, and service disruptions. Typically, these attacks are executed using botnets controlled by threat actors.

Thousands of WordPress Blogs Compromised for DDoS Attacks

September 25, 2013

A massive cyber attack campaign is currently targeting numerous WordPress websites across the internet. In April 2012, we reported on a widespread brute force attack against millions of WordPress sites, resulting in the compromise of approximately 90,000 servers to form a large botnet of WordPress hosts. Recent DDoS attack logs received from reader Steven Veldkamp at ‘The Hacker News’ reveal that victims’ websites are experiencing heavy DDoS attacks, stemming from various compromised WordPress sites.

Utilizing brute force techniques on WordPress administrative portals, hackers are exploiting poorly secured hosts using commonly known username and password combinations. An analysis of DDoS attack logs from September 23, 2013, indicates a storm of malicious activity over just 26 seconds…

Widespread Compromise of WordPress Blogs Results in DDoS Attacks September 25, 2013 A significant cyberattack campaign is currently targeting a large swath of WordPress websites across the globe. This follows a larger trend first reported in April 2012, when millions of WordPress sites were subjected to a widespread distributed brute-force…

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Thousands of WordPress Blogs Compromised for DDoS Attacks

September 25, 2013

A massive cyber attack campaign is currently targeting numerous WordPress websites across the internet. In April 2012, we reported on a widespread brute force attack against millions of WordPress sites, resulting in the compromise of approximately 90,000 servers to form a large botnet of WordPress hosts. Recent DDoS attack logs received from reader Steven Veldkamp at ‘The Hacker News’ reveal that victims’ websites are experiencing heavy DDoS attacks, stemming from various compromised WordPress sites.

Utilizing brute force techniques on WordPress administrative portals, hackers are exploiting poorly secured hosts using commonly known username and password combinations. An analysis of DDoS attack logs from September 23, 2013, indicates a storm of malicious activity over just 26 seconds…

16-Year-Old Arrested for Involvement in History’s Largest Cyber Attack

Sept 27, 2013

A 16-year-old has been detained for allegedly participating in the largest DDoS attack ever recorded, targeting the Dutch anti-spam organization Spamhaus. The arrest, made by British police in April, came to light recently. Authorities stormed his home in south-west London after discovering substantial funds in his bank account. Upon investigation, he was found with various computer systems logged into virtual forums. The March 20 attack on Spamhaus was described as a monumental event in cybercrime, unleashing a torrent of traffic measured at 300 billion bits per second (300Gbps). DDoS attacks occur when hackers mobilize a network of infected computers to overwhelm a server, leading to shutdowns.

16-Year-Old Arrested in Connection with Historic Cyber Attack on Spamhaus Sept 27, 2013 Authorities have arrested a 16-year-old in the United Kingdom for his alleged involvement in what has been described as the largest Distributed Denial of Service (DDoS) attack in Internet history. The assault targeted Spamhaus, a prominent Dutch…

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16-Year-Old Arrested for Involvement in History’s Largest Cyber Attack

Sept 27, 2013

A 16-year-old has been detained for allegedly participating in the largest DDoS attack ever recorded, targeting the Dutch anti-spam organization Spamhaus. The arrest, made by British police in April, came to light recently. Authorities stormed his home in south-west London after discovering substantial funds in his bank account. Upon investigation, he was found with various computer systems logged into virtual forums. The March 20 attack on Spamhaus was described as a monumental event in cybercrime, unleashing a torrent of traffic measured at 300 billion bits per second (300Gbps). DDoS attacks occur when hackers mobilize a network of infected computers to overwhelm a server, leading to shutdowns.

13 Members of Anonymous Charged in ‘Operation Payback’ Cyber Attack Scheme

Oct 04, 2013

A U.S. Grand Jury has indicted 13 alleged members of the hacking collective Anonymous for their involvement in cyber attacks against various websites during the anti-copyright initiative known as “Operation Payback.” The group executed denial-of-service (DDoS) attacks on sites belonging to organizations like the Recording Industry Association of America, Visa, and MasterCard. These actions were in retaliation for the closure of “The Pirate Bay,” a Swedish file-sharing platform used for illegal downloads. The DDoS campaign later targeted Bank of America and other credit card companies after they declined to process payments for WikiLeaks. The indictment charges the suspects with conspiracy to intentionally damage protected computers and using software called Low Orbit Ion Cannon (LOIC) to facilitate the attacks.

Thirteen Members of Anonymous Indicted in Operation Payback Cyber Attacks On October 4, 2013, a U.S. grand jury announced the indictment of thirteen individuals associated with the hacking group Anonymous, in connection with a series of cyber attacks carried out under the banner of “Operation Payback.” This initiative was reportedly…

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13 Members of Anonymous Charged in ‘Operation Payback’ Cyber Attack Scheme

Oct 04, 2013

A U.S. Grand Jury has indicted 13 alleged members of the hacking collective Anonymous for their involvement in cyber attacks against various websites during the anti-copyright initiative known as “Operation Payback.” The group executed denial-of-service (DDoS) attacks on sites belonging to organizations like the Recording Industry Association of America, Visa, and MasterCard. These actions were in retaliation for the closure of “The Pirate Bay,” a Swedish file-sharing platform used for illegal downloads. The DDoS campaign later targeted Bank of America and other credit card companies after they declined to process payments for WikiLeaks. The indictment charges the suspects with conspiracy to intentionally damage protected computers and using software called Low Orbit Ion Cannon (LOIC) to facilitate the attacks.

South Korea Faces Android Trojan Threats, Malware in Gaming Apps, and DDoS Assaults

Oct 25, 2013

Last Tuesday, the National Police Agency of South Korea issued a warning about the proliferation of malware-infected video games available in the South Korean market, designed to facilitate cyberattacks against the country. This malware collects users’ location data and IP addresses, reportedly transmitting the information to servers based in North Korea.

Today, AhnLab, South Korea’s leading antivirus company, confirmed that they have detected distributed denial-of-service (DDoS) attacks targeting the websites of local businesses. The report indicates that approximately 16 websites belonging to 13 companies, including Daum, MSN, and the JoongAng Ilbo newspaper, have been affected. AhnLab noted that around 10,000 computers were compromised, primarily due to the failure to install or update antivirus programs since the last cyberattack in July. The attack was first identified around 4:00 p.m. on Thursday, impacting roughly 10,000 systems.

South Korea Faces Cyber Threats: Android Trojan, Malware in Gaming Apps, and DDoS Attacks On October 25, 2013, South Korea’s National Police Agency issued a stark warning regarding an alarming emergence of malware-laden video games infiltrating local markets. These applications are believed to serve as conduits for orchestrated cyber attacks…

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South Korea Faces Android Trojan Threats, Malware in Gaming Apps, and DDoS Assaults

Oct 25, 2013

Last Tuesday, the National Police Agency of South Korea issued a warning about the proliferation of malware-infected video games available in the South Korean market, designed to facilitate cyberattacks against the country. This malware collects users’ location data and IP addresses, reportedly transmitting the information to servers based in North Korea.

Today, AhnLab, South Korea’s leading antivirus company, confirmed that they have detected distributed denial-of-service (DDoS) attacks targeting the websites of local businesses. The report indicates that approximately 16 websites belonging to 13 companies, including Daum, MSN, and the JoongAng Ilbo newspaper, have been affected. AhnLab noted that around 10,000 computers were compromised, primarily due to the failure to install or update antivirus programs since the last cyberattack in July. The attack was first identified around 4:00 p.m. on Thursday, impacting roughly 10,000 systems.

🔍 Weekly Overview: Fortinet Vulnerability, Chrome Zero-Day, BadIIS Malware, Record DDoS Attack, SaaS Security Incident & More

Cybersecurity Weekly Update: New Vulnerabilities and Persistent Threats This week, the cybersecurity landscape revealed alarming developments as multiple organizations fell victim to sophisticated attacks, highlighting the evolving tactics employed by cybercriminals. Notably, Fortinet disclosed a serious vulnerability affecting its FortiWeb application firewall, categorized as CVE-2025-58034. This flaw, assigned a medium…

Read More🔍 Weekly Overview: Fortinet Vulnerability, Chrome Zero-Day, BadIIS Malware, Record DDoS Attack, SaaS Security Incident & More

Iran Conflict Heightens Cybersecurity Threats in Healthcare

Cyberwarfare / Nation-State Attacks, Fraud Management & Cybercrime, Healthcare <span class=”article-sub-title”>Experts Caution Against DDoS, Ransomware, and Other Cyber Threats in Healthcare</span> <span class=”article-byline”> <a class=”author-link” href=””>Marianne Kolbasuk McGee</a> (<a href=””><i class=”fa fa-twitter”/>HealthInfoSec</a>) • <span class=”text-nowrap”>March 2, 2026</span> <a href=”#disqus_thread”/> </span> <figure> <img src=”” alt=”Iran Conflict Elevates Cyber Risk for Healthcare”…

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To Safeguard Your Devices, A Hacker Aims to Beat the Competition by Hacking You First

Recent reports highlight a controversial trend in cybersecurity involving a figure dubbed a ‘vigilante hacker.’ This individual is reportedly infiltrating IoT devices deemed vulnerable with the purported intent of securing them. However, unauthorized access to systems not owned by oneself is illegal, regardless of the motivation behind it. This phenomenon…

Read MoreTo Safeguard Your Devices, A Hacker Aims to Beat the Competition by Hacking You First

Record-Breaking DDoS Attack (1.35 Tbps) Strikes GitHub Website

On February 28, 2018, GitHub’s widely used code hosting service experienced a monumental distributed denial-of-service (DDoS) attack, peaking at an unprecedented 1.35 terabits per second (Tbps). This incident marks a significant milestone in the realm of cybersecurity, illustrating both the evolving nature of attack methods and the vulnerabilities that persist…

Read MoreRecord-Breaking DDoS Attack (1.35 Tbps) Strikes GitHub Website