# 3D secure via SMS not always shown? (e.g. Three)

**URL:** <https://community.monzo.com/t/3d-secure-via-sms-not-always-shown-e-g-three/120798>\
**Category:** Help\
**Created:** [30 July 2021 08:44 UTC](https://community.monzo.com/t/3d-secure-via-sms-not-always-shown-e-g-three/120798 "2021-07-30T08:44:28Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Dan5](https://dub1.discourse-cdn.com/monzo/user_avatar/community.monzo.com/dan5/32/45125_2.png) [@Dan5](https://community.monzo.com/u/Dan5)\
**Post date:** [30 July 2021 10:28 UTC](https://community.monzo.com/t/3d-secure-via-sms-not-always-shown-e-g-three/120798/5 "2021-07-30T10:28:05Z")

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I _think_ this is because 3DSv2 doesn’t support SMS but retailers have to enable 3DSv2. In this case Three haven’t so it defaults to 3DSv1 which still supports SMS.

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_[View the full topic](https://community.monzo.com/t/3d-secure-via-sms-not-always-shown-e-g-three/120798)._