privacy is almost easy! - unesco...according to this definition, differential privacy is a condition...
TRANSCRIPT
![Page 1: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/1.jpg)
Privacy is Almost Easy!
2nd European MIL forum Riga, 27.06.2016.Kārlis Podiņš, CERT.LV
![Page 2: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/2.jpg)
CERT.LV
![Page 3: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/3.jpg)
![Page 4: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/4.jpg)
• Someone's right to keep their personal matters and relationships secret
• Freedom from unauthorized intrusion
– Sources: Merriam-Webster and Cambridge
Privacy
![Page 5: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/5.jpg)
• Legally correct
• Totally broken
• NOR consumer protection board performance
– 33 popular apps
– 900 pages
– >30 hours
Data Sale – All of You Have AGREED to it
![Page 6: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/6.jpg)
Industrial-Scale Privacy Breach
![Page 7: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/7.jpg)
How is Privacy Compromised?
User disclosure
User agreement = data sale
Hacking
Advanced methods
![Page 8: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/8.jpg)
• 2006 Netflix publishes some anonymized ratings
– 100M movie rating records
– 480k users
• Attacker model:
– A few movies watched by target
– Approximate timeframes
• Targeted deanonymization possible (Narayanan&Shmatikov 2008)
What Can Go Wrong?
![Page 9: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/9.jpg)
Differential Privacy
![Page 10: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/10.jpg)
Take-away
• Privacy – it's almost easy!
![Page 11: Privacy is Almost Easy! - UNESCO...According to this definition, differential privacy is a condition on the release mechanism (i.e., the trusted party releasing information about the](https://reader033.vdocuments.us/reader033/viewer/2022053013/5f0ff5d07e708231d446be5b/html5/thumbnails/11.jpg)
Thank You