CIS Controls v8
CIS Control 9: Email and Web Browser Protections

CIS Controls v8 CIS-9.4: Restrict Unnecessary or Unauthorized Browser and Email Client Extensions

Uninstall or disable any browser or email client plugin, extension or add-on application that is unauthorised or not needed.

Maintained by Gerard BlokdykVerified against the published standard Control text last updated

What else in your programme already covers this

This control maps to 25 controls across 15 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.

ISO 27001:2022 · 5 controls

  • 5.15 Access control
  • 8.1 User end point devices
  • 8.19 Installation of software on operational systems
  • 8.7 Protection against malware
  • 8.9 Configuration management

SOC 2 · 4 controls

  • SOC2-CC3.2 CC3.2 Identifying and analysing risks to objectives (COSO principle 7)
  • SOC2-CC5.2 CC5.2 General controls over technology (COSO principle 11)
  • SOC2-CC6.8 CC6.8 Preventing and detecting unauthorised or malicious software
  • SOC2-CC7.1 CC7.1 Detecting configuration changes and new vulnerabilities

CMMC 2.0 · 2 controls

NIST SP 800-171 Rev 3 · 2 controls

NIST SP 800-53 Rev 5 · 2 controls

  • E8-UAH-ML2 User Application Hardening - Maturity Level 2
  • ASD37-04 User application hardening (Essential)
  • ISM-1235 Restricting add-ons, extensions and plug-ins

CIS Controls v8.1 · 1 control

  • 9.4 Restrict Unnecessary or Unauthorized Browser and Email Client Extensions

FedRAMP High · 1 control

  • CM-11 User-Installed Software

FedRAMP Moderate · 1 control

  • CM-11 User-Installed Software

ISO 27002:2022 · 1 control

  • 8.19 Installation of software on operational systems

UK Cyber Essentials · 1 control

  • CE-SC.1 Remove or Disable Unused Software

Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.

Other controls in CIS Control 9: Email and Web Browser Protections

You are reading one control. How much of CIS Controls v8 have you already done?

CIS Controls v8 CIS-9.4 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of CIS Controls v8 your existing evidence covers. Hold ISO 27001:2022 and 102 of 153 CIS Controls v8 controls already carry evidence.

Each report names every control your existing framework evidences, every one it does not, the reasoning behind each claim, and the claims that were argued against and rejected. 240 were rejected on the ISO 27001:2022 pair alone.

Query this from an agent

The graph holds this control, the 25 it maps to, and the evidence behind each claim, over MCP and REST.