cs44 – nick ragouzis – 2007 privacy – a study in assiduity –
TRANSCRIPT
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CS44 – Nick Ragouzis – 2007
Privacy– a study in assiduity –
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CS44 – Nick Ragouzis – 2007
Assiduous adj. 1: marked by careful unremitting attention …
… or persistent application
Assiduity n. 1: the quality or state of being assiduous : DILIGENCE2: persistent personal attention
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CS44 – Nick Ragouzis – 2007
Asymmetry in Value and Options
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CS44 – Nick Ragouzis – 2007
What does this suggest to you?
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CS44 – Nick Ragouzis – 2007
Privacy for Chocolate?
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CS44 – Nick Ragouzis – 2007
Source: IdentityEconomics.com
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CS44 – Nick Ragouzis – 2007
Source: zillow.com
Expectation of privacy?
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CS44 – Nick Ragouzis – 2007
Key to Vigilance:
“Why?”
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CS44 – Nick Ragouzis – 2007
Passwords
• If you’ve got to go … online:
• The best privacy protection you’ve got
• Until you get something better
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CS44 – Nick Ragouzis – 2007
Password Savvy• Card pins are different: Remember and destroy*
• Don’t worry: write it down, keep it with you• Long password: 12 glyphs• Something you will remember: not tough for you• Follow rule or its variations, e.g.:
• First and last third: Caps• Middle third: Numbers and punctuation
• Avoid complete dictionary words; personal details• Vary passwords across systems, please
• Don’t be complacent: Naked userid and password are just not smart privacy and security policy
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CS44 – Nick Ragouzis – 2007
Challenge Questions Working For You
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CS44 – Nick Ragouzis – 2007
Distributed Identity Systems are Savvy
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CS44 – Nick Ragouzis – 2007
Wireless Networks
Do you really need to hook up right now?
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CS44 – Nick Ragouzis – 2007
Hygienic Wireless
• Replace your home WiFi with WPA2 units• Set it up properly!
• Follow hygienic wired practices:• Separate from your internal wired net• Move to wired for important data• Use savvy password practices• Secure *before* identifier exchange• Encrypted data exchange• Secure identifiers
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CS44 – Nick Ragouzis – 2007
Free Wireless & KiosksSecurity before Convenience
• Follow savvy practices
• Clear history
• Delete cookies: before and after
• Do not insert unencrypted media
• In any case: Avoid financial transactions• Keystroke loggers, etc.
• Consider: Anonymous secure proxy browsing
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CS44 – Nick Ragouzis – 2007
Privacy is not Free
• Exercising choice
• Controlling made decisions
• Rewarding those who honor privacy
• Punish those who don’t
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CS44 – Nick Ragouzis – 2007
Choosing Privacy
• Read the policy, know what’s right, or not
• Specific, articulated purpose
• Specific data
• Specific, limited, availability of data
• Understand their ‘data sharing’ partnerships
• No pass-through of web-bugs/beacons
• Aggregate data only
• Limited time; EU: 12 months
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CS44 – Nick Ragouzis – 2007
Recognize TroubleWe may collect information that can identify you when using our website or in some other manner (think partnership with free wireless, e.g.,) or from our business partners (any one who pays us, e.g.,) or from third parties (or just from anywhere else). We may combine the personal information that we receive from different sources.
Your choices: suck it up, or go away.Editorialized slightly from: evite.com/pages/custservice/privacy.jsp, October, 2007
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CS44 – Nick Ragouzis – 2007
Use only Session Cookies
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CS44 – Nick Ragouzis – 2007
evite.com/webbug.img?u=wetrackyou
Install and learn to use AdBlock
• Single-pixel transparent non-linking gifs
• Personalized beacons attached to banners
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CS44 – Nick Ragouzis – 2007
evite.com/webbug.img?u=wetrackyou
Install and learn to use AdBlock
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CS44 – Nick Ragouzis – 2007
Know your Counterparty
This requires special attention!
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CS44 – Nick Ragouzis – 2007
Can you see the problem?
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CS44 – Nick Ragouzis – 2007
Attend to Details
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CS44 – Nick Ragouzis – 2007
Avoiding the Hook
• Sender: … a m e r c a …• Look closely at the sender
• If necessary (for emails purporting to be from high-value services), look inside the email header
• Click-here links:• Always look closely at the URL
• Preferred: only use book-marked URLs to financial institutions or private data collections
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CS44 – Nick Ragouzis – 2007
Google Safe Browsing for Firefox
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CS44 – Nick Ragouzis – 2007
New IE Address Bar Indicators
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CS44 – Nick Ragouzis – 2007
Using Encrypted Services
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CS44 – Nick Ragouzis – 2007
Read the Source …
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CS44 – Nick Ragouzis – 2007
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CS44 – Nick Ragouzis – 2007
Discussion
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CS44 – Nick Ragouzis – 2007
Privacy Resources
• eff.org
• idcommons.net
• cdt.org