Idiot would be on my target list too if I scout the block explorer and found 783 bitcoin...all together at one place.
If you have 700+ Bitcoin, you gotta be better at holding than this, getting rugged by a social engineering scam for a stack of this size is wild!
https://cointelegraph.com/news/bitcoiner-loses-91m-social-engineering-attack-zachxbt
Discussion
It's crazy to me you'd be making such big buys and not learning the most you can about opsec! Spread your buys, coinjoin, keep your UTXOs on different seeds, multi-sig, damn!
Expensive lesson to learn