On the globalization of the QAnon conspiracy theory through Telegram

M Hoseini, P Melo, F Benevenuto, A Feldmann… - Proceedings of the 15th …, 2023 - dl.acm.org
QAnon is a far-right conspiracy theory that has implications in the real world, with supporters
of the theory participating in real-world violent acts like the US capitol attack in 2021. At the …

Exploring the security and privacy risks of chatbots in messaging services

J Edu, C Mulligan, F Pierazzi, J Polakis… - Proceedings of the …, 2022 - dl.acm.org
The unprecedented adoption of messaging platforms for work and recreation has made it an
attractive target for malicious actors. In this context, third-party apps (so-called chatbots) offer …

Towards understanding the use of telegram by political groups in brazil

M Júnior, P Melo, APC da Silva, F Benevenuto… - Proceedings of the …, 2021 - dl.acm.org
Instant messaging platforms such as Telegram and WhatsApp became one of the main
means of communication used by people all over the world. In most of these services …

Strategies and Attacks of Digital Militias in WhatsApp Political Groups

D Kansaon, P de Freitas Melo, S Zannettou… - Proceedings of the …, 2024 - ojs.aaai.org
WhatsApp provides a fertile ground for the large-scale dissemination of information,
particularly in countries like Brazil and India. Given its increasing popularity and use for …

Telegram Monitor: Monitoring Brazilian Political Groups and Channels on Telegram

M Júnior, P Melo, D Kansaon, V Mafra, K Sá… - Proceedings of the 33rd …, 2022 - dl.acm.org
In this work, we present the “Telegram Monitor”, a web-based system that monitors the
political debate in this environment and enables the analysis of the most shared content in …

Identification of Chinese dark jargons in Telegram underground markets using context-oriented and linguistic features

Y Hou, H Wang, H Wang - Information Processing & Management, 2022 - Elsevier
When cybercriminals communicate with their customers in underground markets, they tend
to use secure and customizable instant messaging (IM) software, ie Telegram. It is a popular …

Helping Fact-Checkers Identify Fake News Stories Shared through Images on WhatsApp

JCS Reis, P Melo, F Belém, F Murai… - Proceedings of the 29th …, 2023 - dl.acm.org
Digital news outlets have largely replaced traditional newspapers and television as the
primary channels for information consumption in Brazil, and WhatsApp plays a crucial role in …

Characterizing Information Propagation in Fringe Communities on Telegram

M Hoseini, P de Freitas Melo, F Benevenuto… - Proceedings of the …, 2024 - ojs.aaai.org
Online messaging platforms are key communication tools but are vulnerable to fake news
and conspiracy theories. Mainstream platforms such as Facebook are increasing content …

Detection of fake images on whatsApp using socio-temporal features

M Kaur, P Daryani, M Varshney, R Kaushal - Social Network Analysis and …, 2022 - Springer
Abstract Social Media Platforms (SMPs) in general and messaging platforms, namely
WhatsApp, have changed how people connect. Unfortunately, SMPs are often used to …

Analyzing YouTube videos shared on WhatsApp and telegram political public groups

ÉV Pereira, P Melo, M Júnior, VO Mafra… - Proceedings of the …, 2022 - dl.acm.org
As the use of smartphones in Brazil has advanced in recent years, instant messaging
platforms such as WhatsApp and Telegram became part of Brazilians' lives and …