In general, it is only possible to access your computer if you share your TeamViewer ID and the associated random passwordor the personal password with another person.
Without knowing the ID and password, it is not possible to access your computer.
Important: Do not share your ID and password with a person you do not trust.
You can also restrict access to your computer in different ways. Depending on how you want to restrict access and to what extent, choose one of the following options:
Completely prevent any access
To completely prevent any access with ID and password, exit TeamViewer in the taskbar. Any incoming or outgoing connections are no longer possible.
Restrict access to specific devices
To restrict access to specific devices, use the Black- or Whitelist in the TeamViewer full version. Deny incoming connections for specific TeamViewer IDs or only allow connections for defined TeamViewer-IDs.
Restrict features for incoming connections
To restrict features for incoming connections, use the access control for incoming connections. Choose between Full access, Confirm all, viewing access or deny any incoming remote control connection.
Deny connections from outside your network
To deny connections from outside your network, only allow incoming LAN connections.