What if its on the bitlocker pin screen? Can they brute force the laptop if they have physical possession of the laptop for a long time?

If you see This PC doesn't support entering a BitLocker recovery password during startup, enable WinRE, tweak Group Policy, ...

If you want to prevent standard users from changing your BitLocker drive encryption password/PIN, you can deploy the relevant Enable/Disable GPO setting for this.

Not now, Microsoft Some Windows devices are presenting users with a BitLocker recovery screen upon reboot following the installation of July's Patch Tuesday update.… Microsoft confirmed the ...

Yeah, in Bitlocker parlance it's referred to as a PIN, but it's basically a separate password from whatever accounts you might have. A blue Bitlocker screens appears in the pre-boot environment ...

A new ransomware strain called ShrinkLocker creates a new boot partition to encrypt corporate systems using Windows BitLocker.

His method is different from past BitLocker attacks because it requires hard-wiring into a computer's TPM chip and sniffing communications via the Low Pin Count (LPC) bus.