The endzone ransomware group listed Gomomentum.com on its data leak site on 2026-09-21. Domains named: gomomentum.com Claim as published on the leak site: Revenue: $221.7 million Momentum is a telecommunications company founded in 2001 that provides cloud-based communication solutions for businesses, specializing in cloud voice services, managed networks, SD-WAN solutions, and Microsoft Teams Phone integration. We gained access to a diagnostic and provisioning tool used by Momentum through a compromised Multi-Service Operator (MSO). Upon reconnaissance, we identified multiple critical vulnerabilities throughout the system. This tool controls inte