In an open letter to Britain's Government Communication Headquarters,... 47 signatories,... including Apple and Google ,have jointly urged the U.K. cybersecurity agency to abandon its plans to "eavesdrop".<br />This comes as intelligence officials at GCHQ proposed a way they believed law enforcement could access end-to-end encrypted communications,... without undermining the privacy, security or confidence of other users,... a practice known as ghost protocol.<br />However, critics say it's impossible for the practice to be done without seriously breaching user security and trust.<br />In 2015 and 2016,... Apple, one of the signatories of the open letter,... took a stand over data privacy in a widely publicized standoff with the FBI.<br />