3. About PISA
• A not-for-profit organization for local information
security professionals.
• Focus on developing the local information security
market with a global presence in the industry
• Web Site:
– http://www.pisa.org.hk
• Membership Information:
– http://www.pisa.org.hk/membership/member.htm
6. 錯誤過濾
• http://www.famplan.org.hk ( 關鍵字過濾 - sex)
• http://www.sysinternals.com (URL 過濾 )
• Google 圖像 search keyword ( 圖像過濾 )
– baby face (large area of skin tone regarded as porn)
– 胡錦濤 (??)
– 中國國旗 (large area of red colour regarded as
unwanted)