This eBook explains how DoS and DDoS attacks threaten telecom networks by flooding bandwidth, abusing protocols, or targeting applications, causing outages, financial loss, and reputational damage. It notes sharp growth in DDoS activity and average mitigation costs of about $200,000 per attack. It then shows why traditional perimeter security lacks visibility and cannot protect real-time SIP and VoIP traffic. Session Border Controllers like Enghouse BorderNet act as gatekeepers at network edges, providing topology hiding, built-in firewalling, overload protection, dynamic blacklisting, and encrypted signaling/media to detect and block malicious traffic while scaling across on-prem and cloud environments.

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