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SUMMARY:Trio of talks: actionable security and privacy\, security and priv
 acy perceptions in South Asia\, and reproductive security and privacy on T
 ikTok in the post-Roe era - Anna Lena Rotthaler (Paderborn University)\, D
 eepthi Munagara (Paderborn University)\, and Rachel Rodriguez Gonzalez (Pa
 derborn University and The George Washington University)
DTSTART:20250804T120000Z
DTEND:20250804T140000Z
UID:TALK234898@talks.cam.ac.uk
CONTACT:Alexandre Pauwels
DESCRIPTION:*Recording*: "https://www.cl.cam.ac.uk/research/security/semin
 ars/archive/video/2025-08-04-t234898.html":https://www.cl.cam.ac.uk/resear
 ch/security/seminars/archive/video/2025-08-04-t234898.html\n\n*Webinar/zoo
 m link*: "https://cam-ac-uk.zoom.us/j/85005798504?pwd=KalxhQkWaiXa3835Z7ay
 31ysW0SpMx.1":https://cam-ac-uk.zoom.us/j/85005798504?pwd=KalxhQkWaiXa3835
 Z7ay31ysW0SpMx.1\n\n*"It’s time. Time for digital security.": An End Use
 r Study on Actionable Security and Privacy Advice*\n\n_Anna Lena Rotthaler
 _\, Paderborn University\n\nAnna Lena is a third-year PhD student whose re
 search focuses on making security and privacy advice more usable for end u
 sers.\n\nDigital security advice is the focus of much research\, with unsa
 tisfying results: End users do not follow experts’ security advice\, and
  users and experts struggle to prioritize existing advice. Several studies
  point out that users are overwhelmed by the amount of available security 
 advice\, and make recommendations on how to improve existing advice. Never
 theless\, we still do not know how to effectively give security advice. In
 spired by daily habit apps\, we developed a set of 30 pieces of short and 
 actionable advice\, and the Security App\, an Android smartphone app to pr
 ovide this advice to end users\, to reduce mental effort\, and to build se
 cure habits. We conducted a 30-day online end-user (N=74) study to evaluat
 e whether the set of advice is actionable and meaningful to users\, whethe
 r users adopt the advice\, and whether the app has an impact on security a
 wareness and behavior. Our results show that the app is an appropriate too
 l to provide security advice to end users. Participants perceive the major
 ity of tasks as comprehensible\, actionable\, and useful\, and we show tha
 t the app in fact introduces secure behaviors. Our results can serve as a 
 basis for future research on security advice and creating secure habits\, 
 and the possibility to effectively teach secure behavior.\n\n\n*Digital se
 curity and privacy perceptions in South Asian contexts: Case studies on UP
 I and Facebook matrimony groups*\n\n_Deepthi Munagara_\, Paderborn Univers
 ity\n\nDeepthi Mungara is a second year PhD student at Paderborn Universit
 y whose work focuses on digital security and privacy in South Asian contex
 ts and she also works on security testing.\n\nIn this talk\, Deepthi prese
 nts two case studies that examine how cultural norms and digital literacy 
 shape user experiences with security and privacy on digital platforms. The
  first study explores India’s Unified Payments Interface (UPI)\, reveali
 ng gaps between user concerns and the security advice provided by apps\, b
 anks\, and regulators\, based on interviews and a content analysis. The se
 cond study investigates Facebook matrimony groups in Pakistan\, where user
 s—navigating cultural taboos and legal restrictions—employ cautious pr
 ivacy strategies to avoid risks like identity theft\, blackmail\, and soci
 al judgment. Across both studies\, Deepthi highlights how users’ decisio
 ns are deeply influenced by cultural\, social\, and informational contexts
 \, and she calls for clearer\, culturally informed communication and stron
 ger platform-level protections to support user security and trust.\n\n\n*R
 eproductive Security & Privacy Advice on TikTok in the post-Roe Era*\n\n_R
 achel Rodriguez Gonzalez_\, Paderborn University and The George Washington
  University\n\nIn summer 2022\, the Supreme Court of the United States ove
 rturned Roe v. Wade\, a seminal case that linked the right to privacy to t
 he right to reproductive self determination at the federal level. Reproduc
 tive self determination in the US is now regulated at the state level\, wi
 th vast differences across states. With the current landscape of online tr
 acking and selling data\, people who may become pregnant are at risk of pr
 osecution based on data from their digital footprint\, including online se
 arches\, period trackers\, and fitness trackers. After the overturn of Roe
  v. Wade\, social media creators reacted on TikTok\, including by giving p
 rivacy advice regarding reproductive health under the new legal situation.
  To create a future advice landscape that empowers users to protect their 
 security and privacy after significant shifts in legislation\, we need to 
 understand the landscape of security and privacy advice: how general-purpo
 se advice was adapted to reproductive health\, what domain-specific advice
  emerged\, and whether\, collectively\, this advice is sound\, actionable\
 , and effective. We report on an in-depth analysis of 92 TikTok videos giv
 ing advice on reproductive security and privacy in reaction to the overtur
 n of Roe v. Wade. We find that content creators connected general-purpose 
 security advice (like using encrypted messengers) to reproductive privacy\
 , and that domain-specific advice (like ceasing the use of period tracking
  apps) emerged. Though each piece of advice was often sound\, it collectiv
 ely lacked nuance\, actionability\, completeness\, and practicality due to
  the complexities of the legal\, technical\, and interpersonal threat land
 scape. Based on our analysis\, we provide recommendations for advice-giver
 s\, social media platforms\, and the security community towards stronger\,
  more actionable\, and more complete communication of domain-specific secu
 rity and privacy advice.
LOCATION:Webinar & FW11\, Computer Laboratory\, William Gates Building.
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