If the phrase computer security was mentioned to you, what would come to mind?
Laptop Battery Viruses?
Hackers?
Physical Security?
Users?
Backup?
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Thinkpad It may be surprising, but most (if not all) breaches in security arise as a result of user actions.
According to the indictment, Jones would steal various IBM and Penguin computer servers from Verisign's warehouse in Virginia and sell them to Johnson. Johnson would then sell the servers to several individuals, who would sometimes place them for sale on eBay. As a result of this scheme, the indictment alleges that Jones and Johnson caused Verisign to lose more than $120, 000 worth of computer equipment. In the indictment, Jones and Johnson are charged in three counts with causing the interstate transportation of stolen property, namely IBM 330 and 335 servers, in violation of 18 U.S.C.
Microsoft In my role as an independent computer consultant, I frequently require user names and passwords to access systems. I have lost count of the number of times, I have telephoned a client and asked whichever user for a user name/password combination and been given just that without even basic security (such as a telephone call-back to my published number).
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Laptop Computers In addition, many passwords are referred to as 'weak', consisting of the name of significant others/children or even as basic as 'password'. For password security, users should be forced to change their passwords at least once per month and each password should be unique. In addition, it is recommended that passwords are at least 5 characters long and contain numbers as well as alphabetic characters. An easy way to prevent 'dictionary' attacks (one of the most common password cracking schemes) is to substitute numbers for letters e.g. 1 for i, 3 for e, 5 for s, 7 for l and 0 for o and adding 3-4 numbers at the end.
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Laptop Computer Viruses are fairly easy to deal with, assuming fairly simple common-sense rules are applied;
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Desktop Computer Ensure you have anti-virus software installed, both on servers and workstations (AVG make an excellent package that is free for single machine use).
Do not open unsolicited emails, or emails that contain attachments that are unexpected.
If an email requires you to run a program - ensure you scan this for viruses before executing it.
Educate users to the steps above.
Notebooks Hackers pose a constant threat to security, but realistically, a small business is unlikely to be targeted for commercial gain. Install a firewall (such as ZoneAlarm), switch off internet routers when not in use, however, again user education is the best step - most hacker attacks succeed due to 'social engineering', where a hacker pretends to be from a support company and elicits passwords from users. Having said this, most hacking attempts arise from within organisations, so ensure that you have robust policies in place with regards to computer usage.
Lenovo Physical security is another consideration. If your server is located in your main office, what is to stop the cleaner from un-plugging it to plug in the vacuum cleaner? In addition, if you have technically aware users, or visitors ensure that there is no monitor/keyboard attached. I have seen numerous clients where the server is in the main office and administrator password is on a 'post it' note attached to the monitor. At the very least, your server should be in a locked cupboard/closet that provides sufficient ventilation for cooling.
Users have already been partially covered above, but to re-iterate;
Hard Drive Ensure you have a password policy.
Ensure you have an acceptable use policy.
Keep your users happy (most successful attacks on computers originate within the organisation).
Travelstar Backup is another issue altogether, but you should aim to ensure that you can recover from complete failure/loss of your server/computer system with minimal downtime. There are various options available from on-line storage, through to re-writable DVDs/Tape.
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