# Introducing Query-based Security Rules

DevFeed: [Introducing Query-based Security Rules](<https://devfeed.tech/articles/introducing-query-based-security-rules-16250.md>)

Original publisher: [Read original article](<https://firebase.blog/posts/2018/01/introducing-query-based-security-rules>)

Author: Tom Larkworthy

Published: 2018-01-26T00:00:00Z

Content type: release

Language: en

Sources: [Firebase Blog](<https://devfeed.tech/sources/firebase-blog.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [Firebase](<https://devfeed.tech/topics/firebase.md>), [Query (disambiguation)](<https://devfeed.tech/topics/query.md>), [data](<https://devfeed.tech/topics/data.md>)

Tags: [firebase](<https://devfeed.tech/tags/firebase.md>), [launch](<https://devfeed.tech/tags/launch.md>), [realtime-database](<https://devfeed.tech/tags/realtime-database.md>), [security](<https://devfeed.tech/tags/security.md>), [security-rules](<https://devfeed.tech/tags/security-rules.md>), [tutorials](<https://devfeed.tech/tags/tutorials.md>), [updates](<https://devfeed.tech/tags/updates.md>)

## AI overview

Firebase introduces query-based security rules for Realtime Database, allowing developers to restrict reads according to query properties such as result limits, user-specific access, and server time. The feature can also simplify data structures and be adopted incrementally alongside existing rules.

## Source excerpt

News, tutorials, and updates from the Firebase team.