Co-written by SecureLogix CTO Mark Collier, Hacking Exposed Unified Communications & VoIP Security Secrets & Solutions  offers thoroughly expanded coverage of today’s rampant threats alongside ready-to-deploy countermeasures. Find out how to block TDoS, toll fraud, voice SPAM, voice social engineering and phishing, eavesdropping, and man-in-the-middle exploits. This comprehensive guide features all-new chapters, case studies, and examples.