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🚨Cyber Alert ‼️ 🇺🇸US - 𝗘𝗠𝗔𝗥𝗞𝗘𝗧𝗘𝗥 FulcrumSec hacking group claims to have breached EMARKETER, allegedly exfiltrating 15.8 TB of data containing over 21.5 million files.

According to the threat actor, the breach involved exposed AWS and GitHub credentials, compromising subscriber profiles, behavioural data, proprietary research, source code, and financial documents. The group also claims to have publicly released 1.24 TB of data.

Threat actor: FulcrumSec Sector: Professional Data exposure (claimed): 15.8 TB Data type: Subscriber profiles, behavioural tracking data, search queries, proprietary research, financial documents, source code Observed: Oct 23, 2026 Status: Pending verification ESIX©: 7.45