Take a proactive approach to network security by implementing preventive measures against attacks--before they occur. Written by a team of security experts, this hands-on resource provides concrete steps you can take immediately as well as ongoing actions to ensure long-term security. Get complete details on how to systematically harden your network from the ground up, as well as strategies for getting company-wide support for your security plan. Features a four-part hardening methodology: * Do This Now!--Checklist of immediate steps to take to lockdown your system from further attack* Take It From The Top--Systematic approach to hardening your enterprise from the top down* Once Is Never Enough!--Ongoing monitoring and assessment plan to keep your network secure, including patch management and auditing* How to Succeed--Strategies for getting budget approval, management buy-in, and employee cooperation for your security program