Merge pull request #218002 from Justinha/authenticator-fips

Authenticator fips

Author: denrea

articles/active-directory/authentication/concept-authentication-authenticator-app.md

@@ -6,7 +6,7 @@ services: active-directory
 ms.service: active-directory
 ms.subservice: authentication
 ms.topic: conceptual
-ms.date: 06/23/2022
+ms.date: 11/16/2022
 
 ms.author: justinha
 author: justinha
@@ -57,8 +57,24 @@ Users may have a combination of up to five OATH hardware tokens or authenticator
 >
 > When two methods are required, users can reset using either a notification or verification code in addition to any other enabled methods.
 
+
+## FIPS 140 compliant for Azure AD authentication
+
+Beginning with version 6.6.8, Microsoft Authenticator for iOS is compliant with [Federal Information Processing Standard (FIPS) 140](https://csrc.nist.gov/publications/detail/fips/140/3/final?azure-portal=true) for all Azure AD authentications using push multi-factor authentications (MFA), passwordless Phone Sign-In (PSI), and time-based one-time passcodes (TOTP).  
+
+Consistent with the guidelines outlined in [NIST SP 800-63B](https://pages.nist.gov/800-63-3/sp800-63b.html?azure-portal=true), authenticators are required to use FIPS 140 validated cryptography. This helps federal agencies meet the requirements of [Executive Order (EO) 14028](https://www.whitehouse.gov/briefing-room/presidential-actions/2021/05/12/executive-order-on-improving-the-nations-cybersecurity/?azure-portal=true) and healthcare organizations working with [Electronic Prescriptions for Controlled Substances (EPCS)](/azure/compliance/offerings/offering-epcs-us). 
+
+FIPS 140 is a US government standard that defines minimum security requirements for cryptographic modules in information technology products and systems. Testing against the FIPS 140 standard is maintained by the [Cryptographic Module Validation Program (CMVP)](https://csrc.nist.gov/Projects/cryptographic-module-validation-program?azure-portal=true).
+
+No changes in configurations are required in Microsoft Authenticator or the Azure portal to enable FIPS 140 compliance. Beginning with Microsoft Authenticator for iOS version 6.6.8, Azure AD authentications will be FIPS 140 compliant by default.
+
+Authenticator leverages the native Apple cryptography to achieve FIPS 140, Security Level 1 compliance on Apple iOS devices beginning with Microsoft Authenticator version 6.6.8. For more information about the certifications being used, see the [Apple CoreCrypto module](https://support.apple.com/guide/sccc/security-certifications-for-ios-scccfa917cb49/web?azure-portal=true). 
+
+FIPS 140 compliance for Microsoft Authenticator on Android is in progress and will follow soon.
+
 ## Next steps
 
 - To get started with passwordless sign-in, see [Enable passwordless sign-in with the Microsoft Authenticator](howto-authentication-passwordless-phone.md).
 
 - Learn more about configuring authentication methods using the [Microsoft Graph REST API](/graph/api/resources/authenticationmethods-overview).
+