Australia recently passed a law forcing tech companies to give law enforcement greater access to encrypted messages from users. The U.K. already has a similar law, and India is considering one.

There’s no new legislation in the U.S., but the FBI and other police agencies still want easy access to iPhones and other computers, as well as private conversations.

Apple and other tech companies are fighting back against a newly proposed method for giving law enforcement access to encrypted smartphones, bypassing users’ passcodes.

The iPhone backdoor proposal comes from Ray Ozzie, who was once chief technical officer at Microsoft, and its chief software architect.

Apple and Google have leant their names to an open letter taking aim at a controversial new anti-encryption bill, which demands that tech companies make their devices breakable at will.

“We write to express our deep concerns about well-intentioned but ultimately unworkable policies around encryption that would weaken the very defenses we need to protect us from people who want to cause economic and physical harm,” the letter opens.

In addition to Apple and Google, other tech giants which signed the missive include Amazon, eBay, Facebook, Netflix, and more.

A bill that would force companies to help law enforcers decrypt private communication is one step closer to becoming a reality, after a draft was published this week.

Called the Compliance with Court Orders Act of 2016, the bill would stop companies including Apple refusing to help organizations like the FBI, provided that proper court orders are given.

And — no surprises here! — it’s already proving controversial.