1. NOTE ON PERSONAL COMPUTER SECURITY Hsu, Yen-Yi

2. Outline  Background  E-mail Content –6 steps

3. Background  A federal prosecutor, Sucheel Gupta, ran a packet sniffing program in EMBA audience.  Most participants were surprised by this demonstration.  A EMBA student John Chettleburgh send a email to the class, to help his colleagues better secure their personal computers.

4. Email content  John would prefer not to have people grab his passwords of personal information.  He think many of his colleague were uncertain as to whether or not they had current virus software, or even firewall.  He provide them with a step-by-step plan for making their PC more secure in this email.

5. Six Steps  STEP 1 ： KEEP IT CLOSE –Many people have had a notebook stolen from their car. –Usually bring it with me. –Using security cable to fasten your notebook to a desk or even a motion sensor alarm.

6.  STEP 2 ： BACKUP –everybody knows the importance of backup, but a few remembers to do it. –Required backup frequency depends on how important your files are to you. –Backup media have a lot of options.

7.  STEP 3 ： SYSTEM PATCHES –Patches are usually security related. –Discovered some kind of a security threat in the software. –Microsoft site. –Windows update site.

8.  STEP 4 ： ANTI-VIRUS SOFTWARE –McAfee virus Scan V.S. Norton Anti-Virus. –Live update or automatic virus definition file download. –Scan your entire PC at least once per week. –Zombie.

9.  STEP 5 ： FIREWALL –protect your computer by ignoring undesirable requests for communication from the Internet. –can be hardware- or software-based, or a combination of both. –There are numerous brands of hardware-based router. –Software-based firewall ： built into the Windows- XP or download a freeware version. –Wireless router

10.  STEP 6 ： ENCRYPTION –Concerned about someone stealing your pc and taking your personal files. –PGP software package 128-bit encryption algorithms Convert the data on your pc into a form that is virtually impossible to descramble –Password function in Microsoft Office 40-bit It can be cracked with relative ease

11. Questions 除了上述文中提供的六大步驟以外，加強 個人電腦安全是否還有其他需要注意的部 分？ 以網路空間作為備份媒體的選擇，是否為 一個好方法？

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