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.
Security researchers have uncovered a flaw dubbed TsuNAME in DNS resolver software that attackers could used to carry out distributed denial-of-service attacks against authoritative DNS servers. Google and Cisco have resolved the issue in their DNS servers.
The websites of about 200 public and private entities in Belgium were knocked fully or partially offline Tuesday by a distributed denial-of-service attack against the publicly funded internet service provider Belnet.
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.
DDoS, one of the oldest types of cyberthreats, continues to pose major security risks for virtually every type of enterprise — small and large alike. And while some organizations might believe they’re a low-risk target, the growing reliance on internet connectivity to power business-critical applications leaves...
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.
Researchers at the security firm Netlab have identified a previously undocumented botnet dubbed "Matryosh" that is targeting vulnerable Android devices to help build its network so it can conduct distributed denial-of-service attacks.
New Zealand’s financial regulator has issued a searing report about IT security failures at NZX, the country’s stock exchange, that contributed to a disruptive DDoS attack. The regulator says NZX had inadequate IT security and failed to prepare for DDoS attacks.
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.
Researchers at Check Point Research are tracking a new botnet dubbed "FreakOut" that's targeting vulnerabilities in Linux systems. The malware is creating a malicious network that has the potential to launch DDoS attacks.
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.
An evolving workplace, greater reliance on IoT and the cloud, and already we have seen the new face of supply chain attacks. This is the backdrop for 2021, and Imperva's Brian Anderson offers insights into the cyber-attack outlook.
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.