The Dutch police's National High Tech Crime Unit (NHTCU) recently happened upon a database of decryption keys on a CoinVault server. CoinVault is a piece of ransomware for Windows systems that has been circulating among nefarious hackers since last November. The team commissioned Kaspersky Labs to build a decryption tool based on these keys that attempts to unlock ransomware-laden PCs. Given the nature of the tool and the limited decryption keys, this solution obviously won't work for everyone but there's no reason not to give it a try. As authorities continue their investigation into the CoinVault ransomware, it's possible that they could unearth even more decryption keys that could be added to Kaspersky's tool.