Physically, Adelson and Sands are well protected. He appears in public with a phalanx of armed bodyguards, said to be former agents of the U.S. Secret Service and Mossad, Israel’s intelligence agency.

Sands paid almost $3.3 million to protect Adelson and his family last year, according to a company filing. That’s on top of what Sands spends on vaults, security cameras, biometric screening devices, and one of the largest private police forces of any U.S. company, all to safeguard the millions of dollars of cash and chips that flow through its operations every day. But the company has been slow to adapt to digital threats.