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SSCP® Systems Security Certified Practitioner All-in-One Exam Guide by Darril Gibson

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Implementing Malicious Code Countermeasures

Because malware is so prevalent, it’s important to protect systems. The primary method of protection is antivirus software and an aggressive defense-in-depth strategy. As an overview, the following methods can be implemented as countermeasures against malware:

• Install antivirus software on all systems.

• Install antivirus and antispam software on e-mail servers.

• Install antivirus and content filter software on firewalls.

• Keep all antivirus software up to date.

• Keep all systems up to date.

• Educate users.

Figure 6-1 shows a popular multipronged approach to installing AV software. First, content-filtering firewalls are placed between the Internet and the internal network to filter all traffic ...

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