Recently, two highly publicized ransomware victims received a decryptor that was too slow to make it effective in quickly restoring the victim’s network. HSE, the national healthcare system of Ireland, was hit by a Conti ransomware attack but refused to pay a ransom. Emsisoft created their ‘Universal Decryptor’ after that ransomware operations do a horrible job when decrypting files. The tool was so slow that the company continued using its own backups to help restore the system. The New Zealand cybersecurity firm’s decryptor is allegedly twice as fast as the ones provided by ransomware gangs.
Source: https://www.bleepingcomputer.com/news/security/ransomware-gangs-slow-decryptors-prompt-victims-to-seek-alternatives/