Nitrogen ransomware is ineffective due to a programming error that prevents even the attackers from decrypting victims' files, rendering ransom payments useless. The malware corrupts the public key during encryption, leading to irreversible data loss. Despite its origins in 2023, Nitrogen has evolved from initial access malware to a ransomware threat that has caused significant damage without providing any means for recovery.
https://www.theregister.com/2026/02/04/nitrogen_ransomware_broken_decryptor/