IBM Sterling Secure Proxy is a DMZ-based application proxy that secures inbound and outbound B2B and managed file transfer traffic by terminating external sessions in a sterile DMZ, applying authentication and inspection controls, and establishing separate sessions into the trusted zone.
Published Oct 13, 2026
| Starting Price | Not publicly standardized; enterprise licensing varies by metric/edition | Not publicly standardized; enterprise quote-based | Typically quote-based; positioned as an MFT platform suite |
| Best For | Enterprises needing a DMZ session-break proxy integrated with the Sterling ecosystem (Connect:Direct/SFG/B2Bi) | Enterprises seeking a purpose-built MFT gateway with edge proxy capabilities | Organizations requiring workflow automation and broad connectors in an MFT product |
| Key Strength | DMZ separation model; integration with Sterling stack; editions for inbound/outbound; AV/DLP options | Gateway-focused architecture; commonly used for secure exchange at scale | Automation features, broad connectivity, and platform-level tools |
| Key Weakness | Operational complexity; ongoing dependency patching; pricing and scaling considerations; limited public review depth for SSP alone | Enterprise deployment complexity and cost; may require additional components for full B2B mapping | May be more than needed for pure proxy use cases; different architecture from DMZ session-break approach |
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