“If I want to hack a million customer’s bitcoin, and they’re holding their keys, I have to hack a million customers. If they all give their keys to one person or one organization, then we’ve got a honey pot. A honey pot that attracts the attention of every hacker on the planet.”
-Andreas Antonopolous, in the YouTube video ‘Introduction to Bitcoin: what is bitcoin and why does it matter?’, in 2017.
(read about Andreas Antonopolous on Wikipedia)