دانلود کتاب Unified Communications & VoIP Security. Secrets & Solutions

"Establish a holistic security stance by learning to view your Internet telephony infrastructure through the eyes of the nefarious cyber-criminal. Hacking ExposedTM Unified Communications & VoIP, Second Edition offers thoroughly expanded coverage of today's rampant threats alongside ready-to-deploy countermeasures. Find out how to block TDoS, toll and social engineering fraud, service abuse, voice phishing, voice SPAM/SPIT, eavesdropping, and man-in-the-middle exploits. This comprehensive guide features all-new chapters, case studies, and examples"-- Read more... Abstract: In-depth explanations of over a dozen ways that unified communications systems can be hacked and exactly how to protect them from attack, based wholly on actual real-world scenarios. Read more...