More tech giants are flocking to support Apple in its fight against a court order that it hack into a mass shooter’s phone. On Tuesday, a California judge ordered that Apple help the FBI in an investigation of the San Bernardino shooting by helping the agency unlock and access the iPhone belonging to one of the shooters. Apple CEO Tim Cook soon after issued a public statement outlining not only the company’s inability to do so without building firmware to hack the phone but also its stance against building a “backdoor” into its products for government exploit. On Thursday, Twitter co-founder and CEO Jack Dorsey tweeted his support for Cook and Apple, joining Whatsapp co-founder and CEO Jan Koum and Google CEO Sundar Pichai, who made similar statements earlier this week.