2.3 Wireless environments are configured and managed securely.
This requirement focuses on ensuring that wireless environments are configured and managed securely. It covers wireless access points, wireless networks, and wireless devices.
Sub-requirements:
- 2.3.1 For wireless environments connected to the CDE or transmitting account data, all wireless vendor defaults are changed at installation or are confirmed to be secure, including but not limited to:
- 2.3.2 For wireless environments connected to the CDE or transmitting account data, wireless encryption keys are changed when personnel with knowledge of the keys leave the company or the role for which the keys were used changes.
2.3. Wireless environments are configured and managed securely.
Ensure wireless networks are securely configured and protected to prevent unauthorized access to the cardholder data environment.
Key Risks
Frequently Asked Questions
What is required for wireless network security?
Change all default wireless settings, use strong encryption (WPA2/WPA3), and disable insecure protocols.
How should wireless authentication be managed?
By using strong authentication methods such as 802.1X and certificate-based access.
What are common mistakes with wireless security?
Leaving default SSIDs and passwords, using WEP or no encryption, and failing to segment wireless from the CDE.
How often should wireless configurations be reviewed?
Regularly, and after any significant changes to the wireless environment.
Why is wireless segmentation important?
It prevents unauthorized access to the CDE from less secure wireless networks.
Common QSA Questions
Can you show your wireless configuration standards?
Yes, we have documented standards that require strong encryption and secure authentication for all wireless networks.
How do you ensure wireless networks are not using default settings?
We audit all wireless devices and configurations to ensure defaults have been changed and strong security is enforced.
How do you protect the CDE from wireless threats?
We segment wireless networks from the CDE and monitor for unauthorized wireless access points.
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