The Role of Security Penetration Testers
An ethical hacker is a person who performs most of the same activities a hacker does but with the owner or company's permission. Ethical hackers are usually contracted to perform penetration tests or security tests. More ...
Design a Network Security Policy
A security policy is a statement of what your systems' users are and are not allowed to do. Make sure that the policy is consistent and clearly-written. More ...
Digital Signatures and Certificates
The construction of the Digital Signature entails applying a hash function to the message by concatenation of the message with a known secret key and then applying a mathematical function which will produce a fixed length output known as the digest. More ...
Email Security
Email has emerged as one of the most important communication mediums. Failing to secure your organization's mail servers may allow spammers to misuse your servers and bandwidth as an open relay to propagate their spam. More ...
How Snort's Stealth TCP Port Scanning Works
Snort is an open source network intrusion detection system, capable of performing real-time traffic analysis and packet logging on IP networks. It can perform protocol analysis, content searching and matching, and can be used to detect a variety of attacks and probes. More ...
Wireless Network Security - The Basics of Securing a Wireless LAN
This article discusses how to secure your home and business wireless network. The process of a client associating and authenticating to an access point is standard. The security requirements vary from a home network, small business network and government departments requiring
stringent network security. More ...
What Is Penetration Testing?
Penetration testing is one of the hottest up and coming skills any IT professional needs to have. Companies are actively looking for penetration testers and professionals with a background in IT security and the ability to do penetration testing. More ...
How to Secure Your Wireless Network
If you use a wireless network, chances are good it is not secure. If you don't make some important configuration changes on your wireless router after installing it, your wireless network is wide open to hackers, curious neighbors and people who would rather use your broadband internet service instead of buying their own. More ...
Detecting Network Sniffers
A packet sniffer is a program or device that eavesdrops on network traffic and gathers data from packets. Malicious intruders may install packet sniffers in order to retrieve usernames and passwords. More ...
Intrusion Detection System (IDS) and Intrusion Prevention System (IPS)
"Most organizations use both IDS and an IPS. The IPS automatically blocks attacks where it is accurate, while the IDS logs and notifies network administrators of suspicious activity so they can use their judgment as to what countermeasures to take. More ...
Multi-Layered Approach to Cyber Security
A multi-layered approach can be tailored to different levels of security. Not every asset needs to be completely secure; instead, only the most business critical assets, such as proprietary and confidential information, need be protected by the most restricted settings. More ...
Security Issues with Wireless LANs
Wireless LAN (WLAN) security threats include war dialing, war driving, war chalking, WEP and WPA security cracking, and rogue access points. This artilce discuses approaches to WLAN Security. More ...
Understanding the Dangers Your Systems Face
It's one thing to know generally that your systems are under fire from hackers around the world and malicious users around the office; it's another to understand specific attacks against your systems. This section discusses some well-known attacks but is by no means a comprehensive listing. More ...
