# Innovation in test security

We combine human expertise with AI for robust exam supervision. Each test session is recorded via computer, phone camera, microphone, keyboard, and mouse, then reviewed by trained professionals for certification.

* * *

## Secure by design

Adaptive test engine administers questions from a vast database, ensuring a test taker would need over 1,000 attempts to see a repeat question

## Comprehensive proctoring

Expert human proctors, with the help of AI, examine each test session for more than 75 different behaviors in multiple, independent rounds of review

## AI and data forensics

Millions of data points collected daily train security algorithms to help detect rule breaking and identify patterns of suspicious behavior

## ID verification

A combination of Computer Vision, AI, and trained proctors verify test takers’ identity

## Test lockdown

The test is automatically canceled if test takers attempt to access external applications or plugins during the test

## Video sample

Accepting institutions can review a short video and writing sample from each test taker’s test session

# Test Security Report

Learn more about the security features of the test and the proctoring process

READ REPORT

### Blog posts

**July 21, 2022**

**Sophie Wodzak**

#### How the Duolingo English Test proctors its online exam

**September 2, 2021**

**Basim Baig and Sophie Wodzak**

#### Why did we deliberately hack the Duolingo English Test?

**April 23, 2021**

**Sophie Wodzak**

#### Born Digital: How we leveraged human-in-the-loop AI to create a more secure high-stakes test

# Start accepting the Duolingo English Test at your institution

GET STARTED