The mod does claim to not collect any personal data, though if it sends a crash log similar to the "error.log" file KSP generates, it does contain personal information (computer name), or if it contains an IP, Mac Address or similar ID, which would be a breach of the US COPPA (Children's Online Privacy Protection Act) law and the UK Data Protection Act Though that is only if the data contains personal information, which it should not according to the creator. However the EU Data Protection Directive is quite a bit more strict, and would require: disclosure of who is receiving the data (this is not shared and to comply should be, but is possible to get with a simple domain trace) if personal data is being sent (which is being disclosed and it is not sent, so thats good) the ability for an individual to see his/her own information that is sent in a clear intelligible form (which I do not think it currently is, you can see all data, but not yours specifically) the ability for an individual to ask for their data to be deleted or blocked Personally I think the ModStatistics Mod is fine, but it should be an opt-in or have the ability to opt-out when first run (and stay that way if updated, or ask again) I also think this mod is fine considering there is no current option to opt out without having to modify a configuration file, which is too much to ask for a end user.