Example: Warren Buffett's personal security budget
> Keeping the boss safe has cost [Berkshire] an average of US$339,000 a year since 2008, or US$4.4 million in total.
https://amp.scmp.com/magazines/style/luxury/article/3126736/...
> Keeping the boss safe has cost [Berkshire] an average of US$339,000 a year since 2008, or US$4.4 million in total.
https://amp.scmp.com/magazines/style/luxury/article/3126736/...
However that sum is low. You need 24/7 security people at watch, both guarding him and the home and then also key family members.
It is possible that he prefers a low attention detail, which reduces cost. But we're still easily talking about a mid two digit number for full-time personal.
It is however likely that different aspects are accounted differently (general company estate security etc.)
Include in the equation that Satoshi additionally likely is a person who puts a high value on privacy, given that they ensured to be anonymous up to now.