2026 Interzero — FulcrumSec ransomware claim (May 29)
Data compromised
Unspecified corporate and customer data per actor marketing
Technical writeup
BreachHistory cataloged May 29, 2026 FulcrumSec marketing against Interzero (interzero.de), a German circular-economy and waste-management group. No company notice at catalog time.
Root cause
FulcrumSec extortion claim