Paranóia e criptografia

Since Signal was released, it has evolved from a niche tool, touted by the privacy-minded and the paranoid, into a mainstream product recommended by the Wall Street Journal. Activists use Signal to coördinate protests, lovers to conduct affairs, workers to unionize, finance professionals to exchange sensitive information, drug dealers to contact customers, journalists to communicate with sources. The app has appeared, shimmering with significance, on the TV shows “Mr. Robot,” “House of Cards,” and “Euphoria.”

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