Toshiba nv Series Instruction Manual page 27

Table1.4
Threat Risk
Attack by an By being intercepted by an
intervenor outside intervenor, each function
(display, operation,·save,
program DL and UL) can not be
activated, or it is executed
incorrectly.
Unintended Internal information leaks out.
information
leakage
Unintended Unintended operation is
operation executed.
Remark (*1)
It is supported for setting and basic functions.
Remark (*2)
It is a product specification that uses only the necessary port, and it is not necessary for
customers to take measures.
Recommended configuration
· Physical security protection by control panel, underfloor duct, etc.
To prevent intervention of the control LAN and the TC-net I / O loop by an
malicious third person, it is recommended that physical boundaries such as
control boards and under-floor ducts be installed.
· Measures against the outflow of stored data.
See section 1.3.3.
· Installing a firewall / router.
When connecting a secure system and an intranet via EWS, it is recommended
to install a firewall / router between the EWS and the intranet, select only the
necessary data flow from the intranet, and block others.
Risk of threats and measures(2)
Unified Controller nv series Secure System Instruction Manual
Risk reduction measure
· Prohibit plaintext passwords
(*1).
· Installing a firewall / router.
Take measures against the
outflow of stored data.
Notify when security settings
are changed (*1).
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