Tens of thousands of people are calling on Parliament to recall the "most extreme spying powers ever seen".
The Investigatory Powers Bill was just passed through the House of Lords and so is now just weeks away from becoming law. But signatories to a new petition hope that process can be stopped, forcing lawmakers to keep the new powers from being published.
The new law forces internet companies to keep a full browsing history of all of their users and give it up to a huge range of government agencies if they are asked. It also gives spies unprecedented powers to read people's messages, as well as forcing technology companies like Apple to hack into their own phones if they are asked.
The petition's description reads: "A bill allowing UK intelligence agencies and police unprecedented levels of power regarding the surveillance of UK citizens has recently passed and is awaiting royal assent, making it law."
It is almost impossible that a bill would not make it into law after passing through the House of Lords, and royal assent is almost always given after a matter of weeks. But it would be possible for lawmakers to repeal the legislation and pass a new surveillance law instead.
"This means it's not too late!" the petition's authors write. "This is an absolute disgrace to both privacy and freedom and needs to stop!"
At the time of publication, it had been signed by 45,000 people. That number was rapidly increasingly.
Because the petition reached 10,000 signatures, the Government must respond to it. At 100,000 signatures, it will be considered for a debate in Parliament.
