If anyone is interested, here's a link to a firm that designs custom interiors/exteriors for private jets. I believe the Airbus with "Bourkhan" written on the side is Abramovich's. http://www.pegasusdesign.mc/
Disclosure, I'm not a billionaire, I just like airplanes.
https://en.wikipedia.org/wiki/Private_banking
You have a specific account manager, who you know, and is in communication with you about that Jet purchase. Yes, it probably is a wire, but maybe to an escrow, depending.
As I needed to buy a car, I informed my account manager that I would buy one, gave her the bank account information of the car dealer and told her that if everything is in order, I would call and ask her to perform an "instant" money transfer.
Just went to the car dealer, looked at the car, call my account manager, 30 minutes later the money was available on the account of the car dealer and I was ready to go.
For the day-to-day stuff, we use a pure online bank, but I am happy to pay the higher fees of a Sparkasse for such cases where trust is needed.
I bought a car last year and just paid for it using my chip-and-pin debit card, my bank told me that they can identify accounts for car dealers and don't question large payments to them.
think of it like financing a new car purchase, on a grand scale. how many people were involved in a $30k car transaction? you, your SO, maybe your kids, the sales guy, the sales manager, the finance manager, the underwriter at the bank, the underwriter's manager at the bank, etc. sure you wrote the dealership a check for the down payment, but did you "send" anyone $30k? no, you were the centerpiece in a large, coordinated effort to get $30k sent from a bank to the car dealership, so you could drive off in a new car without much hassle or cash. scale up from there.
so, yes, there are all sorts of checks in place. on a $millions deal, possibly a dozen people or more will be involved either directly or tangentially. bankers, accountants, lawyers, sales people, etc. deals in the $millions range get complicated, and everyone wants extensive, exacting paperwork to ensure both that they get paid and they don't get accused of fraud.
rich people do not buy expensive things in cash. they tend to hold on to as much cash as possible, because cash is the only kind of money with direct control. avoiding 'debt' is a middle class phenomenon, i assure you. the poor and the rich are drawn to it like flies to shit because it helps them achieve their short term goals fabulously effectively, however different they may be, and however expensive (one can afford it, the other can't. guess who.)
yes, some genius solo entrepreneur could just do all of this himself but in reality it rarely happens that way. more money means more people.
I'm not disagreeing with you, but I recently bought a car for much more than $30k, and I just paid using my chip-and-pin debit card at the dealership - so yeah, I guess the dealership got a transfer directly from Visa.
As for security, once you get to a couple of hundred thousand dollars in a bank they will generally assign you your own account manager and you can work out security restrictions with them. Generally you won't be doing a lot of "online banking" with those accounts but I could imagine people do. If you have a lot of money they probably would call your accountant to verify the transfer prior to enacting it if it didn't come directly from them.
Also, do the banks keep any security checks in place? e.g. If I had $10m and there was a request to transfer out $5m, I'd definitely like the bank to run it by me.