Organizations continue to deploy firewalls as their central gatekeepers to prevent unauthorized users from entering their networks. However, network security is in many ways similar to physical security in that no one technology serves all needs-rather, a layered defense provides the best results. Organizations are increasingly looking to...

CCNP Security IPS 642-627 Official Cert Guide is a best-of-breed Cisco exam study guide that focuses specifically on the objectives for the CCNP Security IPS exam. Senior security engineers David Burns,...

Silence on the...

Voice over Internet Protocol (VoIP) networks have freed users from the tyranny of big telecom, allowing people to make phone calls over the Internet at very low or no cost. But while VoIP is easy and cheap, it's notoriously lacking in security. With minimal effort, hackers can eavesdrop on conversations, disrupt phone calls, change caller IDs,...

Straight from the field, this is the definitive guide to hacking wireless networks. Authored by world-renowned wireless security auditors, this hands-on, practical guide covers everything you need to attack -- or protect -- any...

• In-depth coverage of every SECUR exam objective
• Practical information on Cisco security solutions
• Hundreds of challenging practice...

Hacking and electronic crimes sophistication has grown at an exponential rate in recent years. In fact, recent reports have indicated that cyber crime already surpasses the illegal drug trade! Unethical hackers better known as black hats are preying on information systems of government, corporate, public, and private networks and are...