CISA Warns of Active Spyware Campaigns Hijacking High-Value Signal and WhatsApp Users Source: thehackernews.com/2025/11/c… The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued a Monday alert highlighting active exploitation of commercial spyware and remote access trojans (RATs) targeting users of major mobile messaging applications. According to CISA, threat actors are using sophisticated targeting and social engineering techniques to deploy spyware, gain unauthorized access to messaging apps, and facilitate the delivery of additional malicious payloads capable of further compromising victims’ mobile devices.
CISA Warns of Active Spyware Campaigns
Edward Kiledjian
@ekiledjian