In the world of mobile messaging, there is a dangerous misconception: many Mobile Network Operators (MNOs) believe that simply "having" a firewall means their A2P traffic is secure and monetized. The reality is more costly. If your firewall is poorly oriented or incorrectly integrated, it isn't a shield, it’s a sieve. Traffic that bypasses the firewall is "dark" traffic: it consumes network resources, poses a security risk, and, most importantly, represents a direct hit to your bottom line. Every bypassed message is lost termination revenue - in times where every cent of monetized traffic counts.
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