What makes the Ledger Nano S a secure Bitcoin &alts wallet? here are several Protection layers:
No random screenshots
The Ledger has a separate chip and screen to prevent the security flaw of taking random screenshots of mobile and laptop screens.
When the recovery phrase is shown on a mobile or computer screen it becomes vulnerable to hacking.
When you are using the Ledger Nano S, the seed is displayed on the OLED physical screen that only you can see.
Approve transaction with physical buttons
When you are sending Bitcoins to someone, you need to approve the transaction by pressing physical buttons. So even if your computer is hacked a hacker won’t be able to transfer coins because he doesn’t have physical access to your Ledger Nano S.
Private key is stored on a secured section
Your private key is stored in a secured section of the Ledger itself and it doesn’t ever leave the device.
The Ledger Nano S is an HD wallet, this means that every time you receive funds you get a new receiving address.
User guides and troubleshooting for Ledger Nano S:
*** We recommend NEVER buy a Ledger Nano S or any other hardware wallet from eBay or a private person – only from the official store here ***