Signal creator Moxie Marlinspike in a blog post said “surprised to find that very little care seems to have been given to Cellebrite’s own software security,” He went on and said that it will take a specially crafted file to install in a phone to derail Cellebrite. Cellebrite specializes in assisting law enforcement agencies to copy data off of smartphones. Signal, a privacy-focused app, clashed with Cellebrite when it claimed to upgrade itself to scoop up Signal messages.

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