SIP Trunking Security in 2026: What Enterprises Must Know Before Their Next Breach
Telecom fraud exceeded an estimated $41.82 billion in losses in 2025 - and a substantial share of that exposure runs directly through SIP trunks. The SIP trunking market itself reached $73.14 billion that same year, and is projected to more than double to $157.91 billion by 2030, according to Mordor Intelligence. That collision of rapid adoption and surging fraud is not a coincidence. Enterprises are migrating voice infrastructure to IP-based systems faster than security teams are adapting their threat models to cover them. In 2026, SIP trunking is business-critical infrastructure.