2026 Arup Group — FulcrumSec ransomware leak-site claim and OSINT discussion
Data compromised
Unspecified per public leak-site metadata at time of indexing
Technical writeup
May 2026 ransomware-tracker and blog coverage listed Arup Group as a FulcrumSec leak-site victim, with community threads discussing possible security incident signals. Arup is a large engineering consultancy; BreachHistory records the entry as actor-claimed until the firm publishes a matched incident statement or regulatory notice.
Root cause
Claimed ransomware / extortion intrusion (FulcrumSec)