Only things I could find about this subject always tell that Ledger has a secure element like SIM cards and credit cards have. Also something about another OS running near the main application. But simply when you cut the power isn’t it just a storage device? SIM cards and credit cards are encrypted with a pin. I also think the secure element in Ledger is. So can an advanced adversary pull the secure element off and brute force a 6 digit PIN?