Yahoo is a technology platform tracked across 5 threat clusters and 7 intelligence report mentions on ThreatCluster. First observed February 6, 2026; most recent activity June 29, 2026.
Yahoo has disclosed a massive data breach affecting more than one billion user accounts, which occurred in August 2013. This breach is separate from a previously reported incident in 2014 that compromised 500 million…
A coordinated investigation led by INTERPOL and the Algerian National Police resulted in the dismantling of SniperDz, a phishing-as-a-service (PhaaS) platform that operated since at least 2015. Group-IB played a crucial…
The FBI has issued a warning regarding the Kali365 phishing kit, which is actively stealing Microsoft OAuth tokens and bypassing multi-factor authentication (MFA) protocols. First identified in April 2026, Kali365 is…
Researchers have identified a new class of weak RSA keys in the wild, characterized by patterns of zeros. These keys were discovered through the badkeys project, which analyzes public keys for vulnerabilities. The…
Hackers claimed to have gained access to Jeffrey Epstein's private Outlook email account by exploiting an 'obvious' password revealed in recently released files. The files, made public by the US Justice Department,…