July 07, 2010, 7:44 AM — by Mike Brunenmeister, SecureState - I am often asked what are the activities companies must perform between PCI assessments in order to remain compliant with the PCI standard. Many people would be surprised to find out that the PCI DSS outlines the specific tasks companies must be doing all the time. The following activities were taken directly from the PCI DSS Version 1.2.1 and outline the periodic procedures companies must take to stay compliant:
[ 15 must-listen podcasts for security pros ]
Annually
3.6.4 Periodic cryptographic key changes:
- As deemed necessary and recommended by the associated application (for example, re-keying); preferably automatically
- At least annually
6.6 For public-facing web applications, address new threats and vulnerabilities on an ongoing basis and ensure these applications are protected against known attacks by either of the following methods:
- Reviewing public-facing web applications via manual or automated application vulnerability security assessment tools or methods, at least annually and after any changes.
- Installing a web-application firewall in front of public-facing web applications.
9.5 Store media back-ups in a secure location, preferably an off-site facility such as an alternate or backup site or a commercial storage facility. Review the location’s security at least annually.
9.9.1 Properly maintain inventory logs of all media and conduct media inventories at least annually.
11.3 Perform external and internal penetration testing at least once a year and after any significant infrastructure or application upgrade or modification.
12.1.2 Annual process that identifies threats, vulnerabilities, and results in a formal risk assessment.
12.1.3 Perform a Security Policy review at least once a year and update when the environment changes.
12.6.1 Educate employees upon hire and at least annually.
12.6.2 Require employees to acknowledge at least annually that they have read and understood the company’s security policy and procedures.
12.9.2 Test Incident Response Plan at least annually.
Bi-Annually
1.1.6 Review firewall and router rule sets at least every six months.
Quarterly
8.5.5 Remove/disable inactive user accounts at least every 90 days.
8.5.9 Change user passwords at least every 90 days.
9.1.1 Use video cameras or other access control mechanisms to monitor individual physical access to sensitive areas. Review collected data and correlate with other entries. Store for at least three months, unless otherwise restricted by law.


















