Israeli digital intelligence firm Cellebrite sells software designed to unlock phones and extract their data. As a result, its products are a favorite of law enforcement agencies across the U.S., and police frequently use them to gather evidence from seized devices. In the past, the company has received criticism for its willingness to sell to pretty much any government—including repressive regimes around the world. However, despite its mission to compromise phone security everywhere, Cellebrite would appear to have little interest in securing its own software—if you believe the CEO of encrypted chat app Signal.