Signal messaging app reveals flaws in Israeli firm Cellebrite's equipment SECTIONS Last Updated: Apr 22, 2021, 09:16 AM IST Share Synopsis Signal, an encrypted chat app, clashed with Cellebrite last year when the Israeli company said its equipment was upgraded to allow law enforcement to scoop up Signal messages from devices in their possession. Reuters Signal's allegations come as Cellebrite prepares to go public through a SPAC merger, valuing the equity of the combined company at around $2.4 billion. Washington: Encrypted chat app Signal suggested in a blog post published on Wednesday that products sold to law enforcement from Israeli surveillance provider Cellebrite can easily be sabotaged.