Hackers have developed a sneaky new tactic to push malware onto your phone and snoop on your conversations. Researchers at the cybersecurity firm ESET found fake apps in the Google and Samsung app stores that posed as extensions or premium versions of the popular messaging platforms Signal and Telegram designed to steal user data. The malicious apps, called Signal Plus Messenger and FlyGram, could pull sensitive information from legitimate Signal and Telegram accounts, including call logs, SMS messages, locations and more, when users took certain actions. Here's how it works: Signal and Telegram enable users to link the mobile app…