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Anti-virus protection
Install the latest commercial-quality antivirus software on the computer
connected to the control system and maintain to keep the software up-to-date.
Security measures to prevent unauthorized access
Take the following measures to prevent unauthorized access to our products.
• Install physical controls so that only authorized personnel can access control
systems and equipment.
• Reduce connections to control systems and equipment via networks to
prevent access from untrusted devices.
• Install firewalls to shut down unused communications ports and limit
communications hosts and isolate control systems and equipment from the
IT network.
• Use a virtual private network (VPN) for remote access to control systems
and equipment.
• Adopt multifactor authentication to devices with remote access to control
systems and equipment.
• Set strong passwords and change them frequently.
• Scan virus to ensure safety of USB drives or other external storages before
connecting them to control systems and equipment.
Data input and output protection
Validate backups and ranges to cope with unintentional modification of
input/output data to control systems and equipment.
• Checking the scope of data.
• Checking validity of backups and preparing data for restore in case of
falsification and abnormalities.
• Safety design, such as emergency shutdown and fail-soft operation in case
of data tampering and abnormalities.
Data recovery
Backup data and keep the data up-to-date periodically to prepare for data loss.
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