I am looking for a way to permanently lock an external hdd to read-only mode without a way for the external attacker to make it writable. If it is not possible to use a password or pin to make disk writable, I am ok with a permanent write-locking solution. The goal is to prevent unauthorised third-party from adding any files to the disk or modifying files on the disk and claiming that those files or their changes belong to me.
I know that DVD is a typical solution for this but I need to make 1TB to 2TB of data read-only, so DVDs are not an option.
Is there a way to physically write-lock hdd in any way? I am ok with using any hdd of any maker, either completely external or a 2.5 hdd that can be put into external enclosure. It is ok for me to cut something (like a wire). It just has to be either a password protected change (not OS dependent), or a complete hardware damage to write capability of the drive.
I searched both here and on the Internet in general but could not find the answer.
Edit: exclude password/pin, looking for a permanent solution to make the drive read-only.