1. PC Security: Antivirus Presentation done by Ming-Li Emily Chang (A2980) Raymond Chok (A2419)

2. What is PC Security? Computer security ◦ Also known as cyber security or IT security Is information security as applied to computing devices ◦ Eg: computers and smart phones, computer networks and internet The field covers all the processes and mechanisms by which computer-based equipment, information and services ◦ To be protected from unintended or unauthorized access, change or destruction. includes protection from unplanned events and natural disasters. -Reference from wikipediawikipedia

3. What is anti-virus software? It is a program that are designed to prevent, detect, and remove viruses, and other malicious software ◦ Example of others: worms, trojans, adware, and more. recommended for users to install and up-to-date there are free versions and paid versions Function of anti-virus software : ◦ Scan specific files or directories for known malicious patterns ◦ Allow users to schedule scans to automatically run the scan ◦ Allow users to initiate a scan of a specific file ◦ Show the ‘health’ of computer -Reference from WebrootWebroot

4. Why do we need it Without it, a computer will be infected within minutes or even seconds when connecting to networks. Therefore, it is essential for a computer to install anti-virus software Should we pay for an anti-virus software?

5. Is the free anti-virus software good enough? If it is enough, why do people pay for a anti-virus software? Let’s compare free vs fee anti-virus softwares

6. Why do people use free antivirus? It's a free world out there. ◦ Free maps ◦ free navigation ◦ free text messages ◦ free calls on the Internet ◦ free email ◦ free apps for smartphones

7. Example of FREE! antivirus Some SOLID and reputable antivirus programs for Windows machines: ◦ Avast Free Antivirus ◦ Avira Free Antivirus ◦ AVG AntiVirus Free ◦ Bitdefender Antivirus Free Edition ◦ Norman Malware Cleaner ◦ And many more ◦ Microsoft itself even offers Microsoft Security Essentials for Windows Vista and Windows 7! — but should you trust your digital security to a free program?

8. Free antivirus typically offers: THE MOST BASIC. Generally offer no telephone technical support. ◦ This can be a deal-breaker for any small business, or a family with multiple computer users. Free programs don't, as a rule, offer parental controls. ◦ that can keep kids off inappropriate sites or warn them about cyberstalking and bullying. Includes advertising. ◦ This can be negligible, ◦ but ceaseless pop-up boxes pestering you to sign up for the paid version of whatever you're using can be quite distracting. The primary differences between the free and pay products comes down to these features ◦ some of which can be extremely important – and ease of use.

9. Paid antivirus typically offers: ADVANCED FEATURES. Enhanced Firewall Prevent hackers to access the data stored on computer Turbo scan Designed to shorten scanning times Technical Support Telephone support is available, 7 days a week - 365 days a year. Smart Scanner Only scan the computer when user not using it.

10. Example of paid antivirus

11. Example of paid antivirus(2)

12. Compare them side to side Free anti-virus softwarePaid anti-virus software very basic level of protection lack of technical support Firewall not available Advertisement Scanning time is long slows down computer Designed for advanced user Higher level of protection Additional features such as parental control Firewall provided Scanning time faster and won’t slow down computer Example : AVG turbo scan

13. Conclusion Paid is more suitable for parents, schools, organizations and any individual who is willing to spend on their PC security. For the rest of us, most of the free packages are sufficient. Some is happy with Windows Essentials alone!