Computer and Network Security
Computer network security is a complex subject and is never just a single solution. It requires a layered approach using staff training, security best practice and security products to protect the different aspects of a network. The only way to be completely secure is to isolate the system from any networks which is not practical. It would be almost impossible to make any system entirely safe while still being useful. Therefore a considered approach balancing functionality against cost and inconvenience is required to reduce the risks to the absolute minimum.
Malware is a blanket term to cover all types of malicious software. There are many categories of malware, and they vary from relatively harmless programs that are a bit of fun up to ransomware which encrypts your files and demands a ransom paid in bitcoin for the encryption key. Ransomware is the most worrying development in the criminal exploitation of decent people. Paying the ransom is no guarantee of regaining your data, and the payment by Bitcoin means the criminals can’t be traced.
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Protection against all forms of malware requires a layered approach. Email should be filtered through anti-spam and anti-virus systems. Good quality antivirus software should be installed on all computers and servers as well as Android-based phones and tablets. IOS devices don’t currently have anti-virus products because Apple tightly controls apps that can be installed from the Apple store. Jailbroken IOS devices would be vulnerable, so this should never be done. Many Apple computer users think Apple computers can’t get viruses which is wrong, and because of the increasing user base criminals are increasingly targeting these products. All systems should have the latest security patches installed regularly.
All data should be backed up to give protection against all these problems.
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