TeamSpeak Security & Privacy Guide 2025

Comprehensive guide to TeamSpeak's security features, privacy protections, and best practices for keeping your server and users safe in 2025.

Encryption & Communication Security

Military-Grade Encryption

TeamSpeak uses AES-256 encryption for all voice and data communications.

• Voice Communication: All voice data encrypted in transit
• Text Messages: Channel and private messages encrypted
• File Transfers: Encrypted file transfers between clients
• Server Query: Secure connections for administrative access

Public/Private Key Authentication

TeamSpeak 3 uses a robust public/private key system for user authentication.

• Unique Identity: Each user assigned unique identifier
• Private Key: Stored locally, never shared
• Public Key: Shared for identification
• Non-Recoverable: Lost private key means lost account (feature, not bug)

myTeamSpeak Account Security

Two-Factor Authentication (2FA)

Enhanced security for myTeamSpeak accounts with two-factor authentication support.

• TOTP Support: Time-based one-time passwords (Google Authenticator, Authy)
• SMS Backup: SMS codes as backup method
• Optional Enforcement: Can require 2FA for team members
• Recovery Codes: Generate backup codes for account recovery

OAuth 2.0 Integration

Modern OAuth 2.0 support for third-party integrations.

• Secure Authorization: Standard OAuth 2.0 protocol
• Token-Based: Revocable access tokens
• Scope-Based: Granular permission control
• Developer-Friendly: Easy integration for developers

GDPR & Data Protection

Compliance Features

TeamSpeak provides tools to help with GDPR (General Data Protection Regulation) compliance.

• Account Deletion: Easy account deletion and data removal
• Data Export: Export your personal data on request
• Consent Management: Manage your privacy preferences
• Right to be Forgotten: Complete data removal options
• Cookie Management: Control tracking cookies

Self-Hosting Advantage

One of TeamSpeak's biggest security advantages is the ability to self-host.

• Data Ownership: You control all user data
• No Third-Party Access: TeamSpeak doesn't access self-hosted server data
• Custom Data Retention: Set your own data retention policies
• Privacy by Default: No data collection unless you enable it

User Authentication & Identity

Identity (ID) Management

Understanding how TeamSpeak user identities work is crucial for security.

Unique ID (UID)

• Per-Device: Each installation has unique ID
• Permissions Bound: All permissions tied to UID
• Transferable: Can export/import UID to new device
• Security: Never share UID publicly

Nickname vs Identity

• Nickname: Display name, can be changed freely
• Identity (UID): Permanent identifier, tied to permissions
• Security Implications: Nicknames can be spoofed, UIDs cannot

Permission System Security

Server Groups

Use server groups to control what users can do on your server.

• Hierarchical: Groups inherit permissions from parent groups
• Customizable: Create custom groups for specific roles
• Permissions: Granular control over every action
• Assignments: Manual assignment or automatic based on time connected

Channel Groups

Control user actions within specific channels.

• Talk Power: Control who can speak in channels
• Moderation: Set required talk power for channels
• Channel Admin: Assign channel administrators
• Join Permissions: Control who can join channels

Token System

Use tokens to grant permissions securely.

• One-Time Use: Tokens can be single-use or multi-use
• Secure Distribution: Share tokens securely with users
• Expiration: Set token expiration dates
• Audit Trail: Track token usage in logs

Server Security Hardening

Port Security

Configure ports properly to prevent unauthorized access.

• 9987 UDP: Voice port (required for clients)
• 30033 TCP: File transfer port (can be disabled)
• 10011 TCP: Server Query port (restrict access)
• 41144 TCP: File transfer port (TS6)

Firewall Configuration

# Example UFW configuration for TeamSpeak
sudo ufw allow 9987/udp    # Voice
sudo ufw allow 30033/tcp   # File Transfer
sudo ufw allow 10011/tcp   # Server Query (restrict IP if possible)
sudo ufw enable

IP Whitelisting

Restrict Server Query access to specific IP addresses.

# In ts3server.ini
query_ip_whitelist=192.168.1.100,10.0.0.5

Anti-DDoS Measures

Protect your server from DDoS attacks.

• Rate Limiting: Limit connection attempts per IP
• IP Banning: Ban malicious IPs automatically
• Cloud Protection: Use DDoS protection services
• Monitoring: Monitor for suspicious patterns

Privacy Best Practices

User Data Collection

Minimize data collection to respect user privacy.

• No Email Required: Don't require email for server access
• Optional Profiles: Make profile information optional
• Anonymous Access: Allow anonymous connections
• Data Minimization: Only collect necessary data

Log Management

Properly manage server logs to protect user privacy.

• Log Rotation: Rotate logs regularly
• Retention Policy: Define how long to keep logs
• Sensitive Data: Avoid logging sensitive information
• Access Control: Restrict log file access

Channel Privacy

Configure channels for different privacy levels.

• Private Channels: Password-protected or join-power restricted
• Temporary Channels: Auto-delete when empty
• Hidden Channels: Not visible to users without permissions
• Semicolon Channels: Sub-channel organization

Account Recovery & Deletion

myTeamSpeak Account Recovery

Recover access to your myTeamSpeak account if lost.

• Email Recovery: Password reset via email
• 2FA Recovery: Use backup codes or SMS
• Support Contact: Contact support if all methods fail
• Verification: Identity verification required

Account Deletion

Delete your myTeamSpeak account and associated data.

• Full Deletion: Complete account and data removal
• Anonymization: Data anonymization option
• Linked Services: Check what services use your account
• Irreversible: Deletion is permanent

Security Audit Checklist

Frequently Asked Questions