TRON Permissions and Ledger Hardware Wallets
A hardware wallet protects the key you hold from being stolen — it has no way of knowing whether the account it's signing for was already compromised before that key ever touched it.
What Ledger actually secures
Ledger keeps your private key isolated on a physical device, so malware on your computer can't extract it, and it makes you physically confirm each transaction on-screen before it's signed. This protects against key theft — a real and common risk.
What it can't protect against
If the seed phrase you loaded onto the Ledger came from somewhere else — say, a wallet handed to you as part of a scam — the device will faithfully sign transactions for an account whose Owner permission may no longer even include that key in any meaningful way, or whose Active permission has already been shared with someone else.
The check Ledger doesn't do
Before trusting any account's balance, hardware wallet or not, check its Owner and Active permissions against the address itself. This is independent of which device holds the key — it's a property of the account on-chain.