And some information on how they were distributing it to researchers: https://github.com/broadinstitute/ml4h/blob/master/ingest/uk...
> The following steps require the ukbunpack and ukbconv utilities from the UK Biobank website. The file decrypt_all.sh will run through the following steps on one of the on-prem servers.
> Once the data is downloaded, it needs to be "ukbunpacked" which decrypts it, and then converts it to a file format of choice. Both ukbunpack and ukbconv are available from the UK Biobank's website. The decryption has to happen on a linux system if you download the linux tools, e.g. the Broad's on-prem servers. Note that you need plenty of space to decrypt/unpack, and the programs may fail silently if disk space runs out during the middle.