> ## Documentation Index
> Fetch the complete documentation index at: https://docs.corbado.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Passkey User Management
> Manage individual passkey user accounts, blacklist problematic users and handle passkey-related support issues.
**Passkey User Management** provides tools for supporting individual users and managing their passkey configurations.
## Primary Use Cases
### 1. User Blacklisting
**Prevent problematic users from using passkeys**
* Users experiencing persistent errors
* Users with incompatible devices
* Temporary exclusion during troubleshooting
* Prevent repeated failed attempts
### 2. Passkey Management
**Support users with passkey issues**
* Delete public keys when requested
* Remove corrupted passkeys
* Help users start fresh
* Resolve authentication problems
Blacklisting should be used carefully. Always investigate the root cause of issues before blacklisting users.
## Common Scenarios
### Corrupted Passkey
User reports authentication always fails:
1. Search for user
2. Identify problematic passkey
3. Delete the passkey
4. User creates new passkey
### Device Incompatibility
User's device doesn't support passkeys properly:
1. Blacklist user temporarily
2. Investigate device-specific issue
3. Implement fix if possible
4. Unblacklist when resolved
### Password Manager Conflicts
Third-party password manager causing issues:
1. Review user's passkey inventory
2. Delete passkeys from problematic manager
3. Guide user to use platform authenticator
4. Monitor for recurrence
The user management feature is essential for providing quality support at scale, ensuring users have a smooth passkey experience even when edge cases occur.