What are the concerns surrounding the safety of cryptocurrencies stored in physical wallets, particularly those provided by Ledger, a well-known Hardware Wallet company? There have been allegations suggesting the existence of a "backdoor" in Ledger's physical wallets, leading to widespread panic within the Cryptoverse. How valid are these accusations, and is there a possibility that all physical wallets,
chatspin e-chat including Ledger's, could be compromised?