Security+ Guide to Network Security Fundamentals
Format: PDF / Kindle (mobi) / ePub
Reflecting the latest developments from the information security field, best-selling Security+ Guide to Network Security Fundamentals, 4e provides the most current coverage available while thoroughly preparing readers for the CompTIA Security+ SY0-301 certification exam. Its comprehensive introduction to practical network and computer security covers all of the the new CompTIA Security+ exam objectives. Cutting-edge coverage of the new edition includes virtualization, mobile devices, and other trends, as well as new topics such as psychological approaches to social engineering attacks, Web application attacks, penetration testing, data loss prevention, cloud computing security, and application programming development security.
variety of attacks. The Hope diamond has not always had multiple layers of security. In 1958, this priceless diamond was placed in a plain brown paper wrapper and sent by registered first-class U.S. mail to the Smithsonian Institution! The envelope in which it was sent is on display at the Smithsonian along with the diamond itself. Information security must likewise be created in layers. One defense mechanism may be relatively easy for an attacker to circumvent. Instead, a security system must
through the above URL then use a search engine like Google (www.google.com) and search for “Secunia Software Inspector”. 2. Read through the summary of the features of Software Inspector. 3. Click View detailed list of applications to see all the programs that Software Inspector will scan. 4. Click your browser’s Back button to return to the previous page. 5. Click Start Now and accept any default warnings. 34 Chapter 1 Introduction to Security 6. Check the box Enable thorough system
secretly attaches itself to a legitimate “carrier” and then executes its carrier document when it is opened or the program is launched. Once a virus infects a computer, it performs two separate tasks: it looks for a means to replicate itself by spreading to other computers and it activates its malicious payload. A worm is a program that is designed to take advantage of a vulnerability in an application or an operating system in order to enter a system. Once the worm has exploited the
The second method to filter spam is for the organization to contract with a third-party entity that filters out spam. All e-mail is directed to the third-party’s remote spam filter where it is cleansed before it is redirected to the organization. This redirection can be accomplished by changing the MX record. The MX (mail exchange) record is an entry in the Domain Name System (DNS) that identifies the mail server responsible for handling that domain name. To redirect mail to the third-party’s
hackers, organized crime, and foreign governments who attempt to steal intellectual property, customer data, business information, and personal information such as employee Social Security numbers. What are the attackers’ motives? According to the CIO, the motives probably range from compromising national security to the challenge of attacking a government facility. eYt another network attack that has targeted stored information may add a new motive to that list. Prior to the 2008 Olympic Games