How to use TeamViewer safely in 2025: best practices, risks and recommendations

Using TeamViewer safely depends less on the software than on the configuration: 2FA, strong passwords and activity logging turn TeamViewer from a risk into a control. See also our guide to secure remote access. TeamViewer is one of the most popular remote access tools in the world, used by companies, technicians and home users. But as adoption grows, so do attempts at credential theft, unauthorized access and attacks targeting poorly configured remote sessions.

TeamViewer is safe… if you configure it correctly.
This guide reviews the best practices, real risks and how to protect your devices in 2025.

Why securing remote access is essential

Remote access tools are a frequent target for attackers because they allow full control of a device without physical presence. A single compromised remote session can open the door to fraud, espionage, data theft or lateral movement inside a corporate network.

Most common risks:

• Credential theft
• Unattended open sessions
• Weak passwords
• Unintended permanent access
• “Fake technical support” scams
• Brute-force attacks

The problem is not TeamViewer itself — the problem is poor configuration.

Best practices to use TeamViewer safely

Enable two-factor authentication (2FA)

One of the most important security layers. Even if your password leaks, attackers cannot log in without the second factor.

Use strong and unique passwords

Avoid simple or repeated passwords across services.

Close sessions when finished

Do not leave active connections open when you’re not using them.

Configure whitelists of authorized devices

Only approved computers can connect to your device.

Review activity logs

TeamViewer logs who connected, from where and at what time.

Avoid insecure networks

Do not use TeamViewer on public Wi-Fi without a VPN.

For companies: manage users and permissions

TeamViewer Tensor offers centralized control, audits and advanced policies.

Main threats related to TeamViewer (and how to avoid them)

Phishing and credential theft

Attackers send fake emails pretending to be TeamViewer.
Solution: Avoid suspicious links + enable 2FA.

“Fake technical support” scams

Scammers impersonate official support to gain remote access.
Solution: TeamViewer never calls users.

Brute-force attacks on weak passwords

Simple passwords can be cracked in hours.
Solution: strong and unique passwords.

Misconfigured permanent access

Leaving permanent access enabled without supervision is dangerous.
Solution: enable only when absolutely necessary.

When should you use TeamViewer?

In 2025, TeamViewer remains especially useful for:

• Remote technical support
• Hybrid work and office device access
• Distributed server and device management
• Customer assistance
• Maintenance without travel
• Remote infrastructure control

Its stability, security and cross-platform support keep it among the market leaders. Security policies and plan requirements are published on the vendor site, TeamViewer.