Instruction Manual VisGuard 2
General safety points
24
14162E/2
3.4
Preventing undesirable online access attempts
WARNING!
SIGRIST instruments are equipped with an integrated web user interface and
Modbus TCP interface, thus offering state -of-the-art administration and control
possibilities. However, if these are connected directly to the Internet, then any I n-
ternet user can in principle access your instrument and change the configuration.
Please note the following points to prevent this:
Never connect the instrument directly to the Internet.
Operate it behind a firewall and block access to the instrument.
Only connect to branch offices via VPN.
Change the standard password on commissioning.
Always keep up to date with the latest changes regarding Internet security so that you
can react promptly in the event of alterations.
Install the latest updates immediately (also for the router and firewall).
