TABLE OF CONTENTS Addressing the major threats to networks
Using a layered security strategy to address internal security threats
Assessing risk to your organization
Examining inside attacks
Locating the saboteur
Finding the leaky mails
Dealing with new threats
At this point in the book, it is time to take a step back for a reality check. Firewalls in themselves are not the end-all security solution. A more complete approach is to integrate firewalls with other effective security tools. Let s take a look.
Today the Internet has become a key tool for business communication and information sharing, and many organizations would cease to function if e-mail and web access were denied for any significant period. All Internet content you read, send, and receive carries a risk. The number of potential security risks has increased at the same time as that dependence on information technology has grown, making the need for a comprehensive security program even more important. Likewise, the job of those persons tasked with network security, often system administrators, has never been harder.
The number of reported security incidents continues to grow. There is little indication that this trend will reverse any time soon. According to industry analysts, in 2003, there were 208,870 reported incidents. By the end of the second quarter of 2004, there were already 312,981 incidents reported. A reported incident can be...
