# 2671 — FIPS 140 validated cryptographic modules: active, historical or revoked For 2671, vendor is Duo Security, Inc; module name is Duo Security Cryptographic Module; module type is Software; validation date is 07/07/2016; status is Historical, verified against its source on 2026-08-05. - **Certificate number:** 2671 _(verified: appears in the quote below)_ - **Vendor:** Duo Security, Inc. _(verified: appears in the quote below)_ - **Module name:** Duo Security Cryptographic Module _(verified: appears in the quote below)_ - **Module type:** Software _(verified: appears in the quote below)_ - **Validation date:** 07/07/2016 _(verified: appears in the quote below)_ - **Status:** Historical _(verified: appears in the quote below)_ - **Standard:** FIPS 140-2 _(verified: appears in the quote below)_ ## What the source says > 2671 | Duo Security, Inc. | Duo Security Cryptographic Module | Software | 07/07/2016 | Historical | ## Source - https://csrc.nist.gov/Projects/cryptographic-module-validation-program/validated-modules/Search?SearchMode=Advanced&Standard=140-2&CertificateStatus=Historical&ValidationYear=0 Last verified: 2026-08-05. Review by: 2026-09-04. Part of [FIPS 140 validated cryptographic modules: active, historical or revoked](https://referencesource.org/fips-140-module-validation-status/).