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December 15, 2020 12:45 am

Israeli Spy Tech Firm Says It Can Break Into Signal App

Last Thursday, Israeli phone-hacking firm Cellebrite said in a blog post that it can now break into Signal, an encrypted app considered safe from external snooping. Haaretz reports: Cellebrite's flagship product is the UFED (Universal Forensic Extraction Device), a system that allows authorities to unlock and access the data of any phone in their possession. Another product it offers is the Physical Analyzer, which helps organize and process data lifted from the phone. Last Thursday, the company announced that the analyzer has now been updated with a new capability, developed by the firm, that allows clients to decode information and data from Signal. Signal, owned by the Signal Technology Foundation, uses a special open source encryption system called Signal Protocol, which was thought to make it nigh-on impossible for a third party to break into a conversation or access data being shared on the platform. It does so by employing what's called "end-to-end encryption." According to Cellebrite's announcement last week, "Law enforcement agencies are seeing a rapid rise in the adoption of highly encrypted apps like Signal, which incorporate capabilities like image blurring to stop police from reviewing data. "Criminals are using this application to communicate, send attachments, and making [sic] illegal deals that they want to keep discrete [sic] and out of sight from law enforcement," the blog post added. Despite support for the app's encryption capabilities, Cellebrite noted that "Signal is an encrypted communication application designed to keep sent messages and attachments as safe as possible from 3rd-party programs. "Cellebrite Physical Analyzer now allows lawful access to Signal app data. At Cellebrite, we work tirelessly to empower investigators in the public and private sector to find new ways to accelerate justice, protect communities, and save lives." In an earlier, now deleted, version of the blog post, the company went as far as to say: "Decrypting Signal messages and attachments was not an easy task. It required extensive research on many different fronts to create new capabilities from scratch. At Cellebrite, however, finding new ways to help those who make our world a safer place is what we're dedicated to doing every day." The initial post, which was stored on the Internet Archive, also included a detailed explanation of how Cellebrite "cracked the code" by reviewing Signal's own open source protocol and using it against it. The company noted in the deleted blog post that "because [Signal] encrypts virtually all its metadata to protect its users, efforts have been put forward by legal authorities to require developers of encrypted software to enable a 'backdoor' that makes it possible for them to access people's data. Until such agreements are reached, Cellebrite continues to work diligently with law enforcement to enable agencies to decrypt and decode data from the Signal app."

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