Stolen iphone 12 pro max
My iphone 12 pro max got stolen recently and had a passcode. I reported the phone as lost on find my iphone. Around 4 days later I received texts from 'apple' that the device was found. I stupidly clicked on the link. Now the device has disappeared from find my iphone. I changed my passwords incl apple promptly but can they still access data on my phone/icloud. Is there anyway to erase the phone they have. The imei was registered with immobilise and blacklisted on the network few days before this.
iPhone 11 Pro