I just read that a well-known pipeline company paid $5M to the ransomware hacker group. And despite that, they are still having to use their backups because the decryption process is too slow. This does not surprise me. I also recently read that only 8% of ransomware victims who pay the ransom get all their data back.
Refer Here for Original Post and Source https://blog.knowbe4.com/paying-the-ransom-is-not-just-about-decryption