How do Chromebook PWA, Windows and macOS differ in their features and IIB system integrity models?

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Note: The core lockdown and test delivery features work across Windows, Mac, and Chromebook, but the advanced features (proctoring, 3rd party apps, monitoring tools, system checks, assistive technology) are IIB-specific and limited to Windows and Mac. Chromebook lockdown relies heavily on Chrome OS built-in security rather than application-level controls.

 

#IIB FeaturesChromebook PWAWindowsmacOS
1Platform SupportChrome OS
  • Recommended: Windows 11
  • Supported: Windows 10, 11 on 64-bit (7/8.1 support removed from 1.14.19).
  • Intel & AMD processors supported.

 

  • Recommended: macOS 15.7.
  • Supported: macOS 10, 11, 12, 13, 14, 15, “Tahoe 26”.
  • Intel and Apple Silicon (ARM via Rosetta 2) are supported.
2Secure lockdown test deliveryFull lockdown; relies on Kiosk ModeFull lockdownFull lockdown
3Security policies (Strict, Moderate, Open)Strict mode onlyApplicableApplicable
4Encrypted communication (HTTPS/TLS 1.3)SupportedSupportedSupported
5External display detection & monitoringFlagged in the Monitor toolFlagged in the Monitor toolFlagged in the Monitor tool
6Invigilator password / SEB PINWorks across the platformWorks across the platformWorks across the platform
7User types (One-time, Permanent, SSO/FEIDE/Shibboleth)SupportedSupportedSupported
8Test start/end time modificationPlatform-independent (server-side)Platform-independent (server-side)Platform-independent (server-side)
9Offline submission (save as file)Available, though Chromebook requires USB for offline submissionAvailableAvailable
103rd Party Application SupportNot supportedSupportedMac TBD after POC
11Inspera Resilience Proctoring (IRP)Not SupportedSupportedSupported
12Proctoring recording options (Video, Audio, Screen, Room Scan)Not SupportedSupportedSupported
13ID verification (automated/manual)Not SupportedSupportedSupported
14Assistive Technology (screen readers: JAWS, Narrator, VoiceOver)Not SupportedSupportedSupported
15Allow candidates to change WiFiNot SupportedSupportedSupported
16Device ID checkNot SupportedSupportedSupported
17Keyboard Layout CheckNot SupportedSupportedSupported
18Blocklist of ProgramsNot SupportedSupportedSupported
19Virtual Machine detectionNot SupportedSupportedSupported
20Exam Monitoring Tools (Confidence Level, Warnings, Device Security Flags)Not SupportedSupportedSupported
21Debug and Forensic LogsNot SupportedSupportedSupported
22System Checks (App version, power state, environment, CPU features, process blocklist, etc.)Not SupportedSupportedSupported

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