You also have trad finance collapses (off the top of my head BCCI was several hundred million)and inside jobs - the Bank of England has been robbed for several hundred billion over the last few years, and the scam is showing no signs of abaitting.
A properly secured bitcoin is
IMPOSSIBLE to access fraudelently.
Here you are talking about an exchange. There are zillions of exchanges where they take your bitcoin and give you a promissory note to redeem, just like a traditional bank. Again (although I've said if before)
if you dont own the private key, you do not own the bitcoin.
And again, but louder
IF YOU DO NOT OWN THE PRIVATE KEY, YOU DO NOT OWN THE BITCOIN.
Customer funds are not directly protected by any government, but since 2018, Binance has had insurance with the FDIC, an insurance agency that is backed by the US government. Customers funds are secured to a value of $250k, through SAFU (Secure Asset Funds for Users) deposits.
I'm not sure if the FDIC insurance will cover the bridge. Bridges (things that move coins from one chain to another) are notoriously insecure pieces of blockchain architecture, often secured only by multisig wallets. This hack is currently coming in at no3 on the "largest blockchain hacks of all time" list. All three are bridges. I really like
Across, which is a trustless bridge, but its limited in the chains (EVM only) and coins it supports.