VERIFIED ON MAC Exam Environments

AI Overlay for Codility CodeLive and CodeCheck on Mac

Updated October 2026 · 3 min read · Tested with LockDown Browser v2.1.6.01

If you are interviewing at Microsoft, Intel, Tesla, or a few hundred other engineering shops, you will probably meet Codility. Their CodeCheck async tests and CodeLive interview product both run in Chrome and rely on browser-level behavioral signals rather than any kind of OS hook.

Codility was founded in 2009 by Greg Jakacki and Tomasz Walen in Warsaw, with current HQ in San Francisco and offices in London. Their CodeCheck product is an asynchronous coding test while CodeLive is a real-time coding interview where you share a workspace with a human engineer. Both run entirely inside a browser tab. The proctoring layer classifies behavior into four buckets: copy-paste tracking, tab switching, time spent per task, and copying the task description into something like ChatGPT.

Looking-away detection compares your eye position to the webcam frame. Reading the overlay keeps your gaze on the laptop screen.

Most employers prohibit external assistance on the actual test. We recommend treating async tests as practice.

No. CodeLive piggybacks on getDisplayMedia. macOS excludes private windows from that API at the OS level.

CodeLive records the shared workspace and webcam. CodeCheck does not record the screen at all.

Codility cannot enumerate macOS processes from a browser tab.

The Safe macOS Solution

Need reference access during your exam?

Fracture runs a native floating overlay that sets the macOS window privacy flag. It is 100% excluded from screen capture feeds, window lists, and proctor recordings.

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