The latest articles on DEV Community by Zach (@zach_behavlabs). https://dev.to/zach_behavlabs https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4084008%2F20671c6e-a92a-4302-9808-8963fa3e51e2.png https://dev.to/zach_behavlabs en Zach Wed, 19 Aug 2026 00:35:35 +0000 https://dev.to/zach_behavlabs/i-built-a-keystroke-biometrics-demo-for-continuous-authentication-36jl https://dev.to/zach_behavlabs/i-built-a-keystroke-biometrics-demo-for-continuous-authentication-36jl <p>I’ve been working on behavioral biometrics and recently put together a public demo focused on keystroke dynamics.</p> <p>The idea is simple: two typing samples are collected, and the model estimates whether they were produced by the same person based on timing and typing behavior.</p> <p>The broader goal is continuous authentication using behavioral signals as an additional layer alongside conventional authentication, rather than repeatedly interrupting users.</p> <p>I’m especially interested in edge cases like:</p> <ul> <li>different keyboards or devices</li> <li>fatigue and posture changes</li> <li>one-handed typing</li> <li>deliberate imitation</li> <li>behavioral drift over time</li> </ul> <p>You can try the demo here:</p> <p><a href="https://demo.behavlabs.com" rel="noopener noreferrer">https://demo.behavlabs.com</a></p> <p>Feedback on the UX, model behavior, or failure cases is very welcome.</p> <h1> showdev #machinelearning #cybersecurity </h1> showdev