●Measures to prevent spread of damage following virus infection If a situation that points to a computer virus infection is discovered, the first step it to stop using the system, then notify the security administer and follow instructions as necessary. If the system is connected to a network, the connection should immediately be severed to prevent the infection from spreading.
( 2) ID and password management A“ user ID” is a user name that is assigned in order to identify the system user. A“ password” is used to authenticate the user and prove that it is the correct user. The system validates that it is the user only when the user ID and password match.
●Password setting and management Under user ID and password management, permission to use a system is only granted when a user enters the correct user ID and password combination. Therefore, it is necessary to set a password that is difficult for others to guess.
Easy passwords to guess
Diffi cult passwords to guess
· Own name or date of birth
· Telephone number
· Employee number or company name
· Address
· Commonly used word
· Repeat characters
· Few characters
· Combination of multiple words
· Combination of alphanumeric characters and special symbols
· Character string containing eight characters or more
Reference
Measures for when a network system is infected by a virus
● Issue instructions to stop using the system, and sever the system from the network.
● Investigate the route of infection, possible scope of infection, and type of computer virus, and notify relevant departments and network users of the virus infection.
● Implement measures such as restricting use of the network.
Chapter 9 Technology element
The following precautions should be observed for password management.
• Always set passwords.( Do not permit blank passwords.)
• Change passwords on a regular basis.
• Do not write down passwords on a piece of paper or other material.
• Do not set shared passwords for an entire organization, etc.
• Do not respond to inquiries over the phone.
• Do not send passwords by e-mail.
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