# Scam Prevention Features

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Some scam prevention features require Premium. Verification is available on all tiers. [Compare plans →](/securitybot-knowledge-hub/plans-and-pricing/plans-and-pricing.md)
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SecurityBot is built to help your team respond swiftly to suspicious activity. From compromised accounts to bot raids, these features are designed to contain threats and reduce their impact without relying on manual moderation alone.

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### Key Features

#### Verification

New users must complete a CAPTCHA before gaining access to your server. This stops most automated bots and ensures only real users can participate.

#### Bot Purge

Automatically removes unverified users from your server every 30 minutes. This helps prevent dormant bot accounts from accumulating and launching coordinated scams.

#### Scammer Filter

SecurityBot maintains a global scammer database. Users flagged by other communities are automatically blocked from joining your server.

#### Flag a Scammer

Use the `/scammers flag` command to permanently flag a user as a scammer. They’ll be immediately banned from your server and added to the global scammer blocklist.

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**Flags are permanent and cannot be undone.** If you manually unban a flagged user, they will remain globally blocked by SecurityBot.
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#### Channel Locks

lock down sensitive channels using the `/lock` command. This stops compromised accounts from posting in places like `#announcements`.

#### Webhook Detection

Automatically logs any newly created or updated webhook. You’ll be notified instantly, with quick-action buttons to delete the webhook or take action on the user.

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Next up: Setup verification, Learn how to configure role-based access in [Verification](/securitybot-knowledge-hub/bot-guide/scam-prevention-features/verification.md).


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```
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```

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