Kano or anyone who might know can you please tell me if buying an Open Box Ledger Nano S is secure thing to do? Because I bought one couple of days ago and it said new in the description but now the guy tells me that he opened the box to take some pictures of it! I think when I was setting up my old Ledger wallet it let me pick from 2 options, one was setting up a new wallet and another was to recuperate an existing wallet so he couldn't have done anything to save something in order to access it later on could he?

Thanks!
I believe that there is a signature mechanism between the Ledger Nano S and the Ledger Wallet Chrome App, so it would be very hard to fake the Ledger Nano S hardware and firmware.
Edit: Found it! It's called Attestation.
https://blog.ledger.co/how-to-protect-hardware-wallets-against-tampering-cad35cb72c1You could also open it up and verify the hardware's integrity per these instructions
https://ledger.groovehq.com/knowledge_base/topics/how-to-verify-the-security-integrity-of-my-nano-s