Facebook on Monday became the third major tech company to side with Apple in its battle with the federal government.

“We’re sympathetic with Apple. We believe in encryption; we think that that’s an important tool,” CEO Mark Zuckerberg said at a conference in Barcelona, according to several reports. “I don’t think requiring backdoors with encryption is either going to be an effective way to increase security or is really the right thing to do for just the direction that the world is going.”