Hackers Leveraging WhatsApp That Silently Harvest Logs and Contact Details

Cybersecuritynews •Tushar Subhra Dutta • November 24, 2025

A new malware campaign targeting Brazilian users has emerged, using WhatsApp as its primary distribution channel to spread banking trojans and harvest sensitive information. This sophisticated attack leverages social engineering by exploiting the trust victims place in their existing contacts, making the malicious files appear legitimate. The campaign begins with phishing emails containing archived VBS […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

WhatsApp Vulnerability Exposes Data of 3.5 Billion Users A significant security flaw in WhatsApp's discovery system allowed researchers to access the phone numbers and personal information of approximately 3.5 billion users globally. The vulnerability, which exploited a long-standing gap in the platform's design, was reported by a team from the University of Vienna and SBA Research. Although users' messages remained encrypted, the flaw raised serious privacy concerns regarding user data exposure. 37 sources 31

Hackers Leveraging WhatsApp That Silently Harvest Logs and Contact Details

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Extracted Entities

Attack Types (2)

MITRE ATT&CK (1)

Platforms (1)