Keep Your PC Safe (Windows Vista, XP or 2000) Nora Lucke Documents -  http://www.ucl.ac.uk/is/security/
5 steps  to Security for User-managed PCs <ul><li>Use passwords to control access to your PC </li></ul><ul><li>Install Win...
Why do I need Passwords? <ul><li>People who might use your computer when you are not there </li></ul><ul><ul><ul><li>Clean...
Windows 2000 & XP computers NEED a password for the Administrator account <ul><li>The Administrator account can be used to...
How do I do it? <ul><li>For User passwords </li></ul><ul><li>Use the Control Panel  </li></ul><ul><ul><li>In Windows Vista...
What are Windows updates, & why do I need them? <ul><li>Hackers and criminals keep finding problems in Windows they can ex...
Microsoft Updates (XP or 2000) <ul><li>Unimportant for old versions (pre Windows 2000) </li></ul><ul><li>2000 & XP use the...
Windows Updates – Automatic? <ul><li>You can use the Update icon on XP or 2000 Start Menu or Security Control Panel in Vis...
Virus Checkers <ul><li>If your computer comes with Norton,  YOU  have to  PAY  for the updates after 3 months </li></ul><u...
Firewall <ul><li>A Firewall will protect you from unauthorised access from the Internet, & infected computers around you <...
What are Spyware and Adware? <ul><li>Spyware is software that sends your personal information to a third party without you...
Do they matter? <ul><li>Adware can cause performance issues </li></ul><ul><ul><li>IE might not work properly </li></ul></u...
What should I do about Spyware? <ul><li>Use an anti-virus with Spyware protection (F-Secure) </li></ul><ul><li>DON’T downl...
Summary - Ensure your PC <ul><li>Is password protected so you control who is using it </li></ul><ul><li>Has all Windows up...
Your PC is safe, now protect your data <ul><li>1) BACKUP – </li></ul><ul><ul><li>Every hard disk has a mean time to fail <...
Questions? <ul><li>Documents -  http://www.ucl.ac.uk/is/security/ </li></ul>
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  1. 1. Keep Your PC Safe (Windows Vista, XP or 2000) Nora Lucke Documents - http://www.ucl.ac.uk/is/security/
  2. 2. 5 steps to Security for User-managed PCs <ul><li>Use passwords to control access to your PC </li></ul><ul><li>Install Windows Updates (patches) to guard against network worms (programs that install themselves so they can do damage) </li></ul><ul><li>Install a virus checker and set it to scan your whole hard disk at least weekly </li></ul><ul><li>Use a personal firewall </li></ul><ul><li>Remove Spyware </li></ul>
  3. 3. Why do I need Passwords? <ul><li>People who might use your computer when you are not there </li></ul><ul><ul><ul><li>Cleaner </li></ul></ul></ul><ul><ul><ul><li>Security Guard </li></ul></ul></ul><ul><ul><ul><li>Tradesmen (various) </li></ul></ul></ul><ul><ul><ul><li>Intruder inside the building </li></ul></ul></ul><ul><ul><ul><li>Intruder controlling your computer from outside </li></ul></ul></ul><ul><ul><ul><li>Colleague </li></ul></ul></ul><ul><ul><ul><li>Burglar </li></ul></ul></ul><ul><li>Do you want to be blamed for what they do? </li></ul>
  4. 4. Windows 2000 & XP computers NEED a password for the Administrator account <ul><li>The Administrator account can be used to log on to the PC remotely to make changes, so a password is ESSENTIAL </li></ul><ul><li>The Administrator password must be known, and kept safe in an agreed place </li></ul><ul><li>If an IT person sets up your computer, they should keep a record of it. </li></ul><ul><li>Users can be an Administrator, but should not be the Administrator </li></ul><ul><li>Better to be a limited user, and only log in as an administrator to install programs </li></ul>
  5. 5. How do I do it? <ul><li>For User passwords </li></ul><ul><li>Use the Control Panel </li></ul><ul><ul><li>In Windows Vista – User Accounts </li></ul></ul><ul><ul><li>In Windows XP - User Accounts </li></ul></ul><ul><ul><li>In Windows 2000 – Users and Passwords </li></ul></ul><ul><li>Choose a password you can remember </li></ul><ul><li>Make it a combination of letters and numbers (strong password) </li></ul><ul><li>If you must write it down, hide it </li></ul>
  6. 6. What are Windows updates, & why do I need them? <ul><li>Hackers and criminals keep finding problems in Windows they can exploit, so Microsoft need to keep updating it. </li></ul><ul><li>Updates address known issues and help protect against known security threats which have been discovered since Windows was released. </li></ul><ul><li>Updates can be downloaded automatically, though some updates require you to accept an End User License Agreement (EULA), or restart your computer after installation. </li></ul><ul><li>NEVER be too busy to install them – you can continue to work while they are installed. </li></ul>
  7. 7. Microsoft Updates (XP or 2000) <ul><li>Unimportant for old versions (pre Windows 2000) </li></ul><ul><li>2000 & XP use the Microsoft Update Web site at http://update.microsoft.com. and follow the instructions there </li></ul>
  8. 8. Windows Updates – Automatic? <ul><li>You can use the Update icon on XP or 2000 Start Menu or Security Control Panel in Vista </li></ul>Your PC can be set up to do this ITSELF Find the Windows Update icon in the Control Panel – Security Control Panel Configure the updater - set it to run DAILY
  9. 9. Virus Checkers <ul><li>If your computer comes with Norton, YOU have to PAY for the updates after 3 months </li></ul><ul><li>Use F-Secure or Sophos for which UCL already pays </li></ul><ul><ul><li>download it from www.ucl.ac.uk/fsecure </li></ul></ul><ul><li>Use one at home too – it’s also for home use </li></ul><ul><li>REMOVE any other virus checker BEFORE installing a new one. (Control Panel - Add/Remove Programs, or for Vista, Programs & Features) </li></ul><ul><li>Ensure the virus checker is running all the time </li></ul><ul><li>Set it to scan your hard disk at least WEEKLY </li></ul><ul><li>Use it to remove any viruses detected – and if you can’t, get help </li></ul><ul><li>DON’T automatically open attachments </li></ul>
  10. 10. Firewall <ul><li>A Firewall will protect you from unauthorised access from the Internet, & infected computers around you </li></ul><ul><li>The latest version of F-Secure (free for UCL staff) includes a firewall (settings - http://www.ucl.ac.uk/fsecure/firewall.html) </li></ul><ul><li>It also includes a rootkit detector (rootkits help intruders maintain complete access your PC while avoiding detection.) </li></ul><ul><li>The F-Secure Firewall keeps asking you questions about what to allow – if in doubt, DENY </li></ul><ul><li>Set it to scan web traffic </li></ul><ul><li>Only use ONE firewall in Windows please </li></ul><ul><li>For broadband at home, you may have a firewall already, but F-Secure should sort things out for you. </li></ul>
  11. 11. What are Spyware and Adware? <ul><li>Spyware is software that sends your personal information to a third party without your permission or knowledge (Web sites you visit, even sometimes user names and passwords) </li></ul><ul><li>Adware is software that displays advertisements on your computer. They can inexplicably pop up on your display screen, even if you're not browsing the Internet. </li></ul><ul><li>Some companies provide &quot;free&quot; software in exchange for advertising on your PC. It's how they make their money. </li></ul>
  12. 12. Do they matter? <ul><li>Adware can cause performance issues </li></ul><ul><ul><li>IE might not work properly </li></ul></ul><ul><ul><li>Your PC might hang and crash </li></ul></ul><ul><ul><li>Your PC might slow down </li></ul></ul><ul><li>Spyware can be used by criminal gangs to </li></ul><ul><ul><li>Steal your identity </li></ul></ul><ul><ul><li>Raid your Bank Accounts </li></ul></ul>
  13. 13. What should I do about Spyware? <ul><li>Use an anti-virus with Spyware protection (F-Secure) </li></ul><ul><li>DON’T download free software from the Internet until you know what it is. (Google for information, http://www.tucows.com/ for free software) </li></ul><ul><li>DON’T thoughtlessly click on URLs in emails </li></ul><ul><li>DON’T reply with personal details and passwords </li></ul><ul><li>SCAN often for spyware & CHECK F-Secure </li></ul><ul><li>BE careful with IRC - ‘Messenger’ type programs. </li></ul><ul><li>If not using F-Secure, use Windows Defender (in Vista or XP) or Ad-Aware or Spybot for Spyware </li></ul><ul><li>Update to IE 7 for Windows XP, or use Firefox </li></ul><ul><li>If not using IE7, consider a pop-up blocker (Google?) </li></ul>
  14. 14. Summary - Ensure your PC <ul><li>Is password protected so you control who is using it </li></ul><ul><li>Has all Windows updates, so there are no holes that can be exploited </li></ul><ul><li>Has virus protection RUNNING (so you spot infected files) and scanning your disk REGULARLY </li></ul><ul><li>Has a personal firewall to protect it from other PCs around you </li></ul><ul><li>Is protected from Spyware, Ad-ware and pop-ups while you are web-surfing </li></ul>
  15. 15. Your PC is safe, now protect your data <ul><li>1) BACKUP – </li></ul><ul><ul><li>Every hard disk has a mean time to fail </li></ul></ul><ul><ul><ul><li>Electronic Failure </li></ul></ul></ul><ul><ul><ul><li>Physical Failure </li></ul></ul></ul><ul><ul><li>Data retrieval is expensive – and may be impossible. </li></ul></ul><ul><li>2) ENCRYPT your sensitive data </li></ul><ul><li>3) Keep your PC clean </li></ul><ul><li>THIS WILL BE THE CONTENT OF A FURTHER SESSION </li></ul>
  16. 16. Questions? <ul><li>Documents - http://www.ucl.ac.uk/is/security/ </li></ul>

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