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You're reading from  CISA – Certified Information Systems Auditor Study Guide - Second Edition

Product typeBook
Published inJun 2023
PublisherPackt
ISBN-139781803248158
Edition2nd Edition
Concepts
Information Security
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Author (1)
Hemang Doshi
Hemang Doshi
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Hemang Doshi

Hemang Doshi has more than 15 years of experience in the field of system audit, IT risk and compliance, internal audit, risk management, information security audit, third-party risk management, and operational risk management. He has authored several books for certification such as CISA, CRISC, CISM, DISA, and enterprise risk management.
Read more about Hemang Doshi

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Wireless Networks

A network connection not involving the use of a cable or wire is known as a wireless network. A wireless network is a computer network that uses wireless data connections between communication endpoints (nodes). Cell phone networks and wireless local area networks are examples of wireless networks.

CISA aspirants should be aware of the following controls regarding the protection of wireless (Wi-Fi) security:

  • Enabling MAC filtering
  • Enabling encryption
  • Disabling SSID
  • Disabling DHCP

Enabling MAC Filtering

Each system/PC/laptop/mobile has a unique identification number, which is known as the MAC address. This control allows access to only selected and authorized devices. Hence, the router restricts other unauthorized devices from accessing the network. Blacklist features can be used to specifically reject some MAC addresses.

A router has the option to enable MAC filtering, as indicated in the following screenshot:

Figure 10.7: MAC filtering ...
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CISA – Certified Information Systems Auditor Study Guide - Second Edition
Published in: Jun 2023Publisher: PacktISBN-13: 9781803248158
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Hemang Doshi

Hemang Doshi has more than 15 years of experience in the field of system audit, IT risk and compliance, internal audit, risk management, information security audit, third-party risk management, and operational risk management. He has authored several books for certification such as CISA, CRISC, CISM, DISA, and enterprise risk management.
Read more about Hemang Doshi

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