Download CompTIA Security+ Certification Study Guide, Third Edition: by Ido Dubrawsky PDF

By Ido Dubrawsky

CompTIA's defense+ certification is a globally-recognized, seller impartial examination that has helped over 60,000 IT execs achieve extra and better of their careers. the present protection+ examination (SY0-201) focuses extra on with the ability to take care of defense concerns instead of simply deciding on them. the recent examination covers six significant issues: structures safeguard, community Infrastructure, entry regulate, checks and Audits, Cryptography, and Organizational safeguard. This 3rd version has been up to date to keep on with and canopy the recent examination ambitions. After studying this ebook not just will you have the capacity to go the examination yet you could have a operating wisdom of cryptography, protection laws, vulnerability exams, logical entry keep an eye on equipment, and lots more and plenty extra. *Complete exam-prep package deal contains complete insurance of recent safeguard+ goals and two whole perform exams*Authored through a number one Microsoft protection expert.*A sturdy reference for either starting safety pros and a pro IT individual, this booklet is going past the examination goals to hide the expertise, and the way that expertise is at present being deployed within the company global and what the way forward for the know-how will be. those insights give you the reader a glance "inside" safeguard, either this day and sooner or later.

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Extra info for CompTIA Security+ Certification Study Guide, Third Edition: Exam SY0-201 3E

Sample text

Nimda and Code Red certainly set another precedent for the danger of worms, and they are not harmless. Nimda creates open network shares on infected computers, and it also creates a Guest account with Administrator privileges, thus allowing access to the system and opening it up to whatever a knowledgeable hacker wants to do to it. Code Red (and its variant, Code Red II, which also opened a backdoor for the attacker) ­defaces Web sites, degrades system performance, and causes instability by spawning multiple threads and using bandwidth.

For example, a Web site may trick a user into clicking a link that pushes spyware onto the person’s computer, or a person may install a program they want, not realizing that it’s an adware. People need to be careful in the programs they install on a machine, including the following: Security Threats 19 ■■ ■■ ■■ ■■ ■■ Read the end user license agreement (EULA), as a trustworthy freeware program that uses advertising to make money will specifically say it’s an adware. If it says it is, and you don’t want an adware, don’t install it.

Similarly, the replication of worms across a network can use up bandwidth, causing any transmission of legitimate data across the network to slow dramatically. Hackers create malicious worms that replicate wildly and can also exploit weaknesses in the OS and perform other harmful actions. Their capability to replicate quickly makes them an attractive tool for attackers. There are many ways in which worms can be transmitted, including e-mail, Internet chat rooms, peer-to-peer (P2P) programs, and of course the Internet.

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