BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Crowdsourcing Security Research: A case study of AdObserver - Laur
 a Edelson and Damon McCoy\, New York University
DTSTART:20210302T140000Z
DTEND:20210302T150000Z
UID:TALK157078@talks.cam.ac.uk
CONTACT:Jack Hughes
DESCRIPTION:In the spring of 2020\, we published AdObserver\, a browser ex
 tension for anonymously crowdsourcing data about ads on social media. Over
  the past year\, 17\,000 users have downloaded AdObserver for Chrome or Fi
 refox. During the 2020 US election period\, we were able to collect observ
 ations of tens of thousands of ads every day. We publicly released the pol
 itical Facebook ads we were able to identify\, including the ad targetings
 . We present a case study of AdObserver and review initial results. Data c
 ollected via our browser extension has been instrumental to our discovery 
 of security vulnerabilities and errors in both Facebook and Google’s sys
 tems for ensuring ads comply with platform policies and the law.\n\nWe als
 o discuss important considerations for researchers considering collecting 
 data in this way and specific best practices for projects attempting to us
 e browser extensions to crowdsource data while protecting the privacy of u
 sers who donate data.\n\nRECORDING : Please note\, this event may be recor
 ded and may be available after the event for an indeterminate period under
  a CC BY -NC-ND license. Audience members should bear this in mind before 
 joining the webinar or asking questions.
LOCATION:Webinar
END:VEVENT
END:VCALENDAR