The daily peak of DDoS attack traffic increased 100% from January 2020 to May 2021, reaching 3 Tbps, with most of the high-bandwidth, high-intensity attacks originating from fewer than 50 hosting companies, Nokia Deepfield reports.
Traditional ransomware attacks may have taken over the news, but Proofpoint researchers say the malicious actors who presents themselves as the North Korean-backed Lazarus advanced persistent threat group have revamped their distributed denial-of-service ransom extortion strategy and rebranded.
Forescout Research Labs and the Israeli security firm JSOF have found nine Domain Name System vulnerabilities affecting four TCP/IP stacks that, if exploited, could lead to remote code execution or denial-of-service attacks - potentially on millions of devices.
Researchers with NetScout are warning that attackers are abusing certain versions of the Plex media server app to strengthen and amplify DDoS attacks. The FBI has also warned about increases in DDoS attacks that use these types of amplification techniques.
Threat actors behind a distributed denial-of-service campaign targeted the same set of victims again after the organizations refused to pay the initial ransom demand, a new report by security firm Radware finds.
Citrix is urging customers to implement a newly provided enhancement to its ADC and Gateway devices that is designed to block attackers from abusing the Datagram Transport Layer Security, or DTLS, protocol to amplify distributed denial-of-service attacks.
Citrix is warning its customers that attackers are taking advantage of the company's ADC products to conduct and amplify DDoS attacks, according to a notification published by the firm. A permanent fix to address this security issue won't be available until January.
CISA is warning that local K-12 school districts are increasingly under assault by cyberthreats targeting vulnerable networks that are disrupting physical and virtual education throughout the U.S. The top security problems include ransomware, Trojans and other malware as well as DDoS attacks.
One of those responsible for the massive Mirai-based DDoS attack launched in October 2016 that targeted domain name resolver Dyn and knocked Amazon, PayPal, Spotify, Twitter and others offline has pleaded guilty to federal charges.
The operators behind a botnet dubbed "Gitpaste-12" are abusing legitimate services such as GitHub and Pastebin to help hide the malware's malicious infrastructure, according to Juniper Threat Labs. This botnet mainly targets Linux apps and IoT devices and can mine cryptocurrency.
A report from Google's Threat Analysis Group offers fresh details about the hacking group that targeted Democratic presidential candidate Joe Biden's campaign with phishing emails earlier this year. The phishing effort was linked to a little-known hacking group called APT31, which has connections to China.
Ransomware attacks remain the top cyber-enabled threat seen by law enforcement. But phishing, business email compromises and other types of fraud - many now using a COVID-19 theme - also loom large, Europol warns in its latest Internet Organized Crime Threat Assessment.
New Zealand's stock exchange, NZX, recently fell under a massive distributed denial-of-service attack that was part of an extortion attempt. Security specialist Daniel Ayers breaks down what went wrong and how other organizations can avoid similar issues.
Tesla CEO Elon Musk says a "serious attack" aimed at stealing corporate data and holding his company to ransom has been thwarted. The FBI has accused a Russian national of attempting to recruit an insider to install malware to steal data, which criminals hoped to ransom for $4 million.