Chapter 11, Problem 2MC

Explanation of Solution

Key security to Western bank:

Some of the key security hardware and software used by Western bank are as follows:

• Physical security
  • Physical security is the protection of hardware, software, network, personal, and data from physical events that could cause serious damage or loss to an enterprise.
  • It uses optical fiber cable because it protects against wiretapping and maintains confidentiality and integrity of data.
• Firewall
  • Firewall is a software or hardware-based network security device; it limits incoming and outgoing data traffic based on set of rules.
  • It allows to access the internet but limits to access the internal data by the outsiders.
  • It will not be able to provide the protection against the inside data theft.
    • But, it protects the computers against unauthorized access, virus or malicious applications from the outer access.
      • It includes different types. They are,
        • Packet level firewall
        • Application level firewall
        • NAT (Network address translation) firewall and so on...