Does HackerEarth detect cheating?

You have a coding assessment link and want to know what it watches before you open it. This section lists the checks HackerEarth documents for hiring teams, so you can prepare instead of speculate. The hiring team switches each one on or off per test.

• Tab and window switching: every switch triggers a warning, with 5 warnings as the default.
• Full-screen mode: a warning appears if you exit full screen.
• Copy and paste restriction: pasting code from the web or your own computer into the editor can be blocked.
• Webcam snapshots: photos taken at random intervals while the test is live.
• ID verification: a government ID plus a photo captured before the test.
• IP restrictions and question shuffling: tests can be limited to one location, and question order changes for each candidate.

The strictest setting is the Smart Browser. HackerEarth says it records your screen and webcam and blocks other applications, screen sharing, virtual machines and browser developer tools. Its video and audio proctoring add eye-movement analysis, face recognition, ambient sound analysis and detection of headphones.

Inside a test, HackerEarth compares each candidate's best submission with the best submission of every other candidate. If two submissions match by more than 85%, both are flagged. The report colors the code so a reviewer can see exact copies, slight matches where variable names changed but the logic did not, and code that is genuinely different.

A second check compares your code with public coding sites, such as GeeksforGeeks and Stack Overflow, using an AI model, and reports the likelihood of copying as Medium or High.

Flags are prompts for review, not automatic rejections. A standard algorithm written the standard way can look like many other correct answers, and reviewers know it. A backend candidate flagged for a common graph-search solution was asked on the next call to walk through the approach and change it live; being able to do that is what the flag ends up testing. Comparable breakdowns for other vendors are on the detectability topic hub.

If the hiring team enables it, a surprise question appears at the end. It is generated from the questions you attempted and checks that you understand the solution you just submitted.

Everything the proctoring saw then rolls into an integrity index, calculated from the number and severity of violations, such as tab switches, snapshot violations, plagiarism and audio proctoring signals. Recruiters can filter candidates by it, so a pile of small violations can matter even when no single one looks serious.

The practical preparation is simple: close other apps and silence notifications, use a stable connection, sit in a quiet room with your face in frame, and write code you can explain line by line.

SubcueAI assists live, spoken interviews. The native macOS and Windows app captures system audio and your microphone and shows suggestions in a floating local overlay; the browser extension's Side Panel does live assist for a call in a Chromium tab, capturing only that tab's audio. No meeting bot joins the call, and nothing is injected into the meeting page.

A HackerEarth assessment is a monitored coding test, not a conversation, and SubcueAI does not read or answer it. A test with webcam snapshots, screen recording or a lockdown browser is out of scope, and that is a limit of what any tool should do on someone else's assessment, not a setting to change. What SubcueAI records during a live interview is on the security page.

The round worth preparing for is the technical interview that follows a passed test, where you explain your solutions out loud. Timed practice for that runs on the mock interview page.