Unrecoverable

It's unrecoverable.

The report, called the Internet Organized Crime Threat Assessment, cited the 2019 "GermanWiper" ransomware as an example of the harm it can bring. That ransomware replaced the files of German companies, making them unrecoverable.

My first love left an unrecoverable mark on my mental health.

The software crashed with an unrecoverable error, and I lost half an hour of work.