|
There are significant Information Security risks when you download any files (including graphics files of any format), programs, or scripts, etc from the Internet.
|
|
|
|
- In the process of downloading applications (programs) from the Internet to your PC, you may receive a virus or other malicious code which infects your system. This can have extremely serious consequences.
|
- Follow the on screen instructions for downloading. When offered this choice: 'Run this program from its current location' or 'Save this program to disk', always choose: 'Save this program to disk', then do the following :-
- Save the file to a temporary folder, and ideally, then move the file to a folder on a system which can then be isolated from your network.
- Run an up-to-date virus and malicious code scan on the file.
- If the file passes the scan, open / execute it away from the network in a secure area.
- Re-file the original file and / or its contents in the desired folder on the required computer.
- For files received by e-mail see 'Receiving e-mail'.
- It is critical that staff are familiar with, and practice, anti-virus procedures. See Cyber Crime.
- Be especially careful with 'shareware' / 'freeware' programs from the Internet. They are ideally suited to introducing 'Trojan horses' and other malicious code to your organisation.
|
- Downloaded software is likely to require licensing or you run the risk of legal action from the supplier. See Software Licensing.
|
- Maintain a Software Inventory and ensure that all necessary licences are purchased.
- Do not introduce software via the 'back door' of Internet downloads. Software should only be installed via agreed procedures.
|
- Information on the Internet may be inaccurate, invalid, or deliberately misleading, and any decisions based upon it must be subject to close scrutiny.
|
- Take into account that information received through the Internet is not necessarily reliable.
- Accept that such information may not only be incorrect, but may have been released in order to cause malicious damage or defraud.
- Validate the sources of information and pay particular attention to its date; data on the Internet can be a number of years old and yet still claim to be 'new' / the latest etc.
|
- Abuse of your organisation's Internet access can overload your network and increase the risk of systems failure due to contention.
|
- Your Information Security Policy concerning Using the Internet in an Acceptable Way and Downloading Files and Information from the Internet should be consulted.
- Implement measures to monitor that such policy is being followed.
- Where individuals continue to abuse Internet Access, disciplinary procedures may be required.
|