https://arstechnica.com/tech-policy/2023/12/suspects-can-refuse-to-provide-phone-passcodes-to-police-court-rules/
https://reason.com/volokh/2023/12/14/is-compelled-decryption-heading-to-the-supreme-court/
"Criminal suspects can refuse to provide phone passcodes to police under the US Constitution's Fifth Amendment privilege against self-incrimination, according to a unanimous ruling issued today by Utah's state Supreme Court."