15 citations · 19 across the 6 of their papers we have counts for
6 papers
PicHunt: Social Media Image Retrieval for Improved Law Enforcement
Sonal Goel, Niharika Sachdeva, Ponnurangam Kumaraguru +2
First responders are increasingly using social media to identify and reduce crime for well-being and safety of the society. Images shared on social media hurting religious, politic…
Characterising Behavior and Emotions on Social Media for Safety: Exploring Online Communication between Police and Citizens
Niharika Sachdeva, Ponnurangam Kumaraguru
Increased use of social media by police to connect with citizens has encouraged researchers to study different aspects of information exchange (e.g. type of information, credibilit…
Privacy4ICTD in India: Exploring Perceptions, Attitudes and Awareness about ICT Use
Ponnurangam Kumaraguru, Niharika Sachdeva
Several ICT studies give anecdotal evidences showing privacy to be an area of concern that can influence adoption of technology in the developing world. However, in-depth understan…
Online Social Media and Police in India: Behavior, Perceptions, Challenges
Niharika Sachdeva, Ponnurangam Kumaraguru
Police agencies across the globe are increasingly using Online Social Media (OSM) to acquire intelligence and connect with citizens. Developed nations have well thought of strategi…
Three-Way Dissection of a Game-CAPTCHA: Automated Attacks, Relay Attacks, and Usability
Manar Mohamed, Niharika Sachdeva, Michael Georgescu +6
Existing captcha solutions on the Internet are a major source of user frustration. Game captchas are an interesting and, to date, little-studied approach claiming to make captcha s…
ChaMAILeon: Exploring the Usability of a Privacy Preserving Email Sharing System
Prateek Dewan, Niharika Sachdeva, Mayank Gupta +1
While passwords, by definition, are meant to be secret, recent trends have witnessed an increasing number of people sharing their email passwords with friends, colleagues, and sign…