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Threat actors are abusing the special-use ".arpa" domain and IPv6 reverse DNS in phishing campaigns that more easily evade domain reputation checks and email security gateways. [...]
Cybersecurity researchers have discovered five distinct activity clusters linked to a persistent threat actor known as Blind Eagle between May 2024 and July 2025
Cybersecurity agencies from Australia, Canada, New Zealand, and the United States have published a joint advisory about the risks associated with a technique called fast flux that has been adopted by threat actors to obscure a command-and-control (C2) channel
A newly discovered phishing-as-a-service (PhaaS) operation that researchers call Morphing Meerkat, has been using the DNS over HTTPS (DoH) protocol to evade detection. [...]
Cybersecurity researchers have shed light on a new phishing-as-a-service (PhaaS) platform that leverages the Domain Name System (DNS) mail exchange (MX) records to serve fake login pages that impersonate about 114 brands
The threat actor known as Gamaredon has been observed leveraging Cloudflare Tunnels as a tactic to conceal its staging infrastructure hosting a malware called GammaDrop
Threat actors are using Domain Name System (DNS) tunneling to track when their targets open phishing emails and click on malicious links, and to scan networks for potential vulnerabilities. [...]