# Tag write permission

**URL:** <https://forum.inductiveautomation.com/t/tag-write-permission/101492>\
**Category:** Ignition\
**Created:** [January 28, 2025, 1:55pm UTC](https://forum.inductiveautomation.com/t/tag-write-permission/101492 "2025-01-28T13:55:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ahmed\_badawi1](https://avatars.discourse-cdn.com/v4/letter/a/58f4c7/32.png) [@Ahmed\_badawi1](https://forum.inductiveautomation.com/u/Ahmed_badawi1)\
**Post date:** [January 28, 2025, 1:55pm UTC](https://forum.inductiveautomation.com/t/tag-write-permission/101492/1 "2025-01-28T13:55:55Z")

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I have a tag which is updated from a gateway script every hour, and i want to protect this tag from being changed from outside the script by any user

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**Author:** ![Brandon\_Peterson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/brandon_peterson/32/32960_2.png) [@Brandon\_Peterson](https://forum.inductiveautomation.com/u/Brandon_Peterson)\
**Post date:** [January 29, 2025, 4:16am UTC](https://forum.inductiveautomation.com/t/tag-write-permission/101492/2 "2025-01-29T04:16:05Z")

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Hi Ahmed,  
I'd start here: [Tag Security Properties | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.1/platform/tags/tag-properties/tag-security-properties)

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**Author:** ![deon.korb](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@deon.korb](https://forum.inductiveautomation.com/u/deon.korb)\
**Post date:** [January 29, 2025, 7:48am UTC](https://forum.inductiveautomation.com/t/tag-write-permission/101492/3 "2025-01-29T07:48:50Z")

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> [@Memory tags, read only for all except gateway script](https://forum.inductiveautomation.com/t/memory-tags-read-only-for-all-except-gateway-script/69677/3):
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> I use a security level called "Internal" and restrict the tag's write permissions to require this level. No users are granted this level, effectively restricting the tag's write permissions to gateway and tag event script.

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**Author:** ![Ahmed\_badawi1](https://avatars.discourse-cdn.com/v4/letter/a/58f4c7/32.png) [@Ahmed\_badawi1](https://forum.inductiveautomation.com/u/Ahmed_badawi1)\
**Post date:** [January 29, 2025, 6:20pm UTC](https://forum.inductiveautomation.com/t/tag-write-permission/101492/4 "2025-01-29T18:20:47Z")

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That's a good idea