--- title: "#biometrics articles | Hashnode" description: "Explore 51 articles tagged #biometrics on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/biometrics" --- Tag # #biometrics 51 posts · 4 followers [Apoorv Sharma](https://hashnode.com/@apoorvshrm) · [Oct 16](https://hashnode.com/posts/gps-time-clock-apps-identity-verification-compared/6ad1c0d0d881660eadc9cc87) ### [Geofencing Proves Where, Not Who: GPS Time Clock Apps With Identity Verification Compared (2026)](https://derivatex.hashnode.dev/gps-time-clock-apps-identity-verification-compared?utm_source=hashnode&utm_medium=feed) Geofencing proves where a phone was, not who held it. Compare 8 GPS time clock apps on identity verification, liveness detection, and offline capture. 25 min read · [derivatex.hashnode.dev](https://derivatex.hashnode.dev/gps-time-clock-apps-identity-verification-compared?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Sep 1](https://hashnode.com/posts/build-a-palm-vein-biometric-door-lock-with-an-esp32-and-ir-camera/6a964f4e2b97a2f3cdc00bde) ### [Build a Palm-Vein Biometric Door Lock with an ESP32 and IR Camera](https://circuitrocks.hashnode.dev/build-a-palm-vein-biometric-door-lock-with-an-esp32-and-ir-camera?utm_source=hashnode&utm_medium=feed) Palm-Vein Biometric Door Lock: An ESP32, a DFRobot dual-camera module and 940nm infrared light read the veins under your palm. 3 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/build-a-palm-vein-biometric-door-lock-with-an-esp32-and-ir-camera?utm_source=hashnode&utm_medium=feed) [Short Lived](https://hashnode.com/@shortlivedage) · [Aug 22](https://hashnode.com/posts/you-can-change-a-stolen-password-you-can-t-change-a-stolen-face/6a8a3719b4b1abb6e61971b1) ### [You Can Change a Stolen Password. You Can't Change a Stolen Face.](https://shortlivedage.hashnode.dev/you-can-change-a-stolen-password-you-can-t-change-a-stolen-face?utm_source=hashnode&utm_medium=feed) Face ID and fingerprint unlock feel like the end of password hassle. Federal guidelines disagree that they should stand alone. 3 min read · [shortlivedage.hashnode.dev](https://shortlivedage.hashnode.dev/you-can-change-a-stolen-password-you-can-t-change-a-stolen-face?utm_source=hashnode&utm_medium=feed) [Lewis Gilchrist](https://hashnode.com/@lewis-dev) · [Aug 13](https://hashnode.com/posts/the-re-identification-problem-that-breaks-anonymized-data/6a7d90ee87a448b45fc1d14e) ### [The re-identification problem that breaks "anonymized" data](https://devabkk.hashnode.dev/the-re-identification-problem-that-breaks-anonymized-data?utm_source=hashnode&utm_medium=feed) Anonymized data is not anonymous. Here is why re-identification works, what k-anonymity guarantees, and the cases that proved it. 7 min read · [devabkk.hashnode.dev](https://devabkk.hashnode.dev/the-re-identification-problem-that-breaks-anonymized-data?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Aug 5](https://hashnode.com/posts/add-touch-id-to-any-mac-with-a-diy-esp32-s3-fingerprint-module/6a72b743e3f01ae063daae96) ### [Add Touch ID to Any Mac With a DIY ESP32-S3 Fingerprint Module](https://circuitrocks.hashnode.dev/add-touch-id-to-any-mac-with-a-diy-esp32-s3-fingerprint-module?utm_source=hashnode&utm_medium=feed) Add Touch ID Any: A developer built TinyTouch, an open source ESP32-S3 USB module that brings fingerprint unlock to any Mac, no pricey Apple keyboard… 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/add-touch-id-to-any-mac-with-a-diy-esp32-s3-fingerprint-module?utm_source=hashnode&utm_medium=feed) [James KYC researcher](https://hashnode.com/@primebiometry) · [Jul 14](https://hashnode.com/posts/passive-liveness-detection-sdk-comparison-2026/6a5645de7fc8ee09bf9c02bb) ### [Passive Liveness Detection in 2026: OZ Liveness vs FaceTec vs iDenfy – A Developer's Comparison](https://primebiometry.hashnode.dev/passive-liveness-detection-sdk-comparison-2026?utm_source=hashnode&utm_medium=feed) A developer's comparison of three liveness SDKs — architecture, injection attack protection, platform support, and pricing at real volume. 12 min read · [primebiometry.hashnode.dev](https://primebiometry.hashnode.dev/passive-liveness-detection-sdk-comparison-2026?utm_source=hashnode&utm_medium=feed) [Doogal Simpson](https://hashnode.com/@doogal) · [Jun 10](https://hashnode.com/posts/how-face-id-adapts-to-facial-changes/6a2984c95efe215621af4f49) ### [How Face ID Adapts to Beards and Facial Changes](https://doogal.dev/how-face-id-adapts-to-facial-changes?utm_source=hashnode&utm_medium=feed) Learn how Face ID dynamically updates its mathematical model of your facial geometry to accurately adapt to aging, weight changes, and shaving a beard. 5 min read · [doogal.dev](https://doogal.dev/how-face-id-adapts-to-facial-changes?utm_source=hashnode&utm_medium=feed) [Tiamat](https://hashnode.com/@tiamat) · [Mar 9](https://hashnode.com/posts/passwordless-authentication-broke-security-not-passwords/69af52fbd56ba4bc8801dd85) ### [Passwordless Authentication Broke Security, Not Passwords](https://tiamat-ai.hashnode.dev/passwordless-authentication-broke-security-not-passwords?utm_source=hashnode&utm_medium=feed) TL;DR Passwordless authentication (biometrics, passkeys, FIDO2) promised to eliminate phishing and credential theft. Instead, it moved the attack surface from passwords to the verification layer itself. Result: A single exploit on a biometric reader,... 10 min read · [tiamat-ai.hashnode.dev](https://tiamat-ai.hashnode.dev/passwordless-authentication-broke-security-not-passwords?utm_source=hashnode&utm_medium=feed) [Tiamat](https://hashnode.com/@tiamat) · [Mar 7](https://hashnode.com/posts/your-face-is-permanent-data-the-biometric-surveillance-crisis/69ac35a99cd8c36ef66ce189) ### [Your Face Is Permanent Data: The Biometric Surveillance Crisis](https://tiamat-ai.hashnode.dev/your-face-is-permanent-data-the-biometric-surveillance-crisis?utm_source=hashnode&utm_medium=feed) On January 9, 2020, Robert Williams pulled into his driveway in Farmington Hills, Michigan, after a long day at work. Detroit police were waiting. They arrested him in front of his wife and two young daughters, handcuffed him, and drove him to a hold... 21 min read · [tiamat-ai.hashnode.dev](https://tiamat-ai.hashnode.dev/your-face-is-permanent-data-the-biometric-surveillance-crisis?utm_source=hashnode&utm_medium=feed) [Tiamat](https://hashnode.com/@tiamat) · [Mar 7](https://hashnode.com/posts/biometric-data-ai-your-face-is-a-password-you-cant-change/69ac0fd1d0a56986f639127b) ### [Biometric Data & AI: Your Face Is a Password You Can't Change](https://tiamat-ai.hashnode.dev/biometric-data-ai-your-face-is-a-password-you-cant-change?utm_source=hashnode&utm_medium=feed) A password can be reset. A credit card can be canceled. An email address can be abandoned. Your face cannot be changed. Your iris pattern cannot be regenerated. Your fingerprints stay with you until you die. Your gait — the way you walk — is as ident... 12 min read · [tiamat-ai.hashnode.dev](https://tiamat-ai.hashnode.dev/biometric-data-ai-your-face-is-a-password-you-cant-change?utm_source=hashnode&utm_medium=feed)