The topic was discussed here, but it's gone: https://lainchan.org/sec/res/3101.html
http://archive.is/ZEpLY
IIRC the thread was much longer.
https://archive.is/jFIRA
There are some posts on the topic on reddit: https:// www.reddit.com/r/WhereIsAssange/search?q=insurance+keys&restrict_sr=on