From ee5534d5d37939e95548e86f7d25b28ff30b7242 Mon Sep 17 00:00:00 2001 From: MichaelVerdon Date: Wed, 19 Mar 2025 14:59:12 +0000 Subject: [PATCH] docs(auth): warn users about sms usage --- docs/auth/multi-factor.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/docs/auth/multi-factor.md b/docs/auth/multi-factor.md index 9c5c8dec2eb4..e7156d423d4f 100644 --- a/docs/auth/multi-factor.md +++ b/docs/auth/multi-factor.md @@ -7,6 +7,8 @@ Book: /docs/_book.yaml If you've upgraded to Firebase Authentication with Identity Platform, you can add SMS multi-factor authentication to your Flutter app. +Note: Avoid the use of SMS-based MFA. SMS is an insecure technology that is easy to compromise or spoof with +no authentication mechanism or eavesdropping protection. Multi-factor authentication (MFA) increases the security of your app. While attackers often compromise passwords and social accounts, intercepting a text message is