
Sentry - Hack Blocker, Anti-BOT & more!
Ultimate server security plugin, blocks cheating mods and the most popular hacked clients, Anti-BOT & VPN, prevents crash-items, OP Protection, and more!
New on Hack Blocker
- Added new feature to hide the "ugly" signs when testing a player, by adding PacketEvents to the server, all detection signs will not be visible anymore for other players.
Fixes
- Fixed false positives on high ping players
Support for Stripe
- Added Stripe as a new payment method to buy monthly subscriptions or lifetime licenses. More information here - https://ko-fi.com/drawned
Fixes
- Fixed memory leak in the discord webhooks integration
- Fixed discord webhooks being sent in a synchronous thread instead of asynchronous
Misc
- Fixed typo in the main config.yml file
Hack Blocker
- Added support to block these 2 new clients/mods:
- Xenon Client
- SeedCrackerX
- Added new option to change the checking method in hack-blocker.yml:
- You can now switch between "JOIN" and "MOVEMENT" in the config, this allows better control of when the player should be checked upon joining.
Item Control
- Updated to work in newer 26.x+ versions
- Fixed issues with the unsafe potion detection in newer versions
- Added support to block these 2 new clients/mods:
Fixes: Hack Blocker
- Addresses all recent issues with the Hack Blocker module
- Fixes Sentry leaving signs of checked players
- Possible fix to bad caching when players relog too fast on 'multithreaded-based fork' platforms
Misc
- Fixed some issues with servers running older version (<1.13)
API Changes
- Removed old ClientTriggerEvent
- Added ClientBlockerEvent
- Added HackBlockerEvent
Hack Blocker Module
- Added support to block CheatUtils mod.
Misc
- Fixed Bedrock compatibility not working for some players
- Fixed issues with Anti-VPN detection
Hack Blocker: New clients added
- Added support to block these new mods:
- Crystal Macro
- Item Scroller
- Auto Totem
- Silly's Auto Totem
Fixes
- Fixed error when trying to check players on Anti-VPN module
API
- Bumped version to 1.4.1
- Added support to block these new mods:
Developer API
Sentry finally has a fully functional developer API! Available at GitHub, more information below:
Improvements: Anti-VPN
- Now using async HTTP requests to fix some performance issues
Fixes: Hack Blocker
- Added +1s delay to check players when logging in
Fixes: Hack Blocker
- Fixed critical issue of signs appearing and staying after a player is checked
Compatibility
- Added official 26.1.2 support
Fixes: Hack Blocker
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Added Floodgate support to fix some issues players had when using GeyserMC
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Bedrock players (through Geyser/Floodgate) are ignored and can join the server now
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Added and fixed Canvas (Folia fork) support
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Fixed detection issues on servers running 1.16.5 - 1.18
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Hack Blocker
- Added support to block Iris Shaders
Misc
- Internal code improvements for better performance
New: Features for Hack Blocker
- Added WorldGuard compatibility, players are now not going to be message-spammed when Sentry checks them.
- Added new option "check-world-change", to re-check players when they change worlds, defaults to "false"
Fixes
- Fixed GeyserMC compatibility issues
Fixes
- Fixed OP protection not auto-allowing server operators
- Improved performance of bStats
Fixes
- Fixed detected hacked clients not being reset when a player rejoins the server
Features: Hack Blocker module
- Added new option to block the "WorldTools" mod, to prevent players from downloading the server world.
- Added new option to block the "Freecam server detection bypass" mod, they are not undetectable anymore.
Improvements
- Improved anonymous bStats metrics
Fixes
- Updated NBTEditor class to the latest release to fix some issues with Item Control on newer versions
- Fixed some missing plugin log messages
Features: New mods to hack-blocker module
- Added these cheating mods to the module:
- Advanced X-Ray Mod
- Xray Mod
- Freecam by kapiteon
- Freecam by zergatul
Features: GeyserMC support
- Bedrock players are not going to be checked by hack-blocker module now.
Added
- Added hacked clients list to
/sentry player <player>
Fixes
- Fixed module loading multiple background tasks when Sentry Prime is activated
- Fixed duplicate hacked client names on hack-blocker module
- Fixed DistantHorizons blocking on older Minecraft versions
- Fixed permission bypass not working on the new Modern Brand method on client-blocker module
- Fixed missing space on a log message
- Added these cheating mods to the module:
Fixes:
- Fixed issue when running actions on a player that is offline on all modules 'on-detect'
- Added possibility of detecting multiple mods on client-blocker and hack-blocker
- Fixed wrong debug message on hack-blocker
Performance improvements
- Moved some internal variables to cache
Features: Modern Brand
- Added new "Modern Brand" method on client-blocker, this finally fixes the Fabric detection on newer Minecraft versions
- Enabled by default, it also allows more accurate detection on some other modloaders and modified clients.

Features: Item Control Whitelist
- Added new "whitelist" method on item-control module.
# Item whitelist, items listed here are not going to be checked by Sentry. # https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/Material.html whitelist: - BARRIERNew Module: Hack Blocker
This module finally adds the possibility of blocking the most common hacks and hacked mods out there, like Freecam, LiquidBounce, Wurst, Meteor Client and some more mods!
This module requires your server to be running at least Minecraft 1.16.5+ and PaperMC (or other forks.) It also requires Sentry Prime, more info here - https://squareplugins.gitbook.io/sentry/prime
- 1.21.11 support
Anti-Bot Module
New module added!
This module finally adds the possibility of blocking bots and attacks. Here is a cool video showing an example of how it looks!
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Performance improvements
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Enhanced plugin stability
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Fixed and enhanced plugin first time run message
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Added "info" as a subcommand for "player"
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Experimental 1.21.8+ support
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New feature added: Lockdown!
The main command is:
/lockdown [reason](not /sentry lockdown)- It allows you to lock the server temporarily, kick all the online players and only allow specific players with the 'sentry.bypass.lockdown' permission to join the server.Fixes
- Fixed legacy versions issue with the "sentry.command" permission.
- Removed sentry.command as a permission requirement.
Changes
- Enhanced "notifications off" reminder to be more direct and just better in general.
- Enhanced the warning and notifications message format.

