I have a few bitcoin savings in Ledger Nano s which I never open since 2 years ago, and I never connect with Live applications except only connect with Electrum. So, does my ledger have an impact or effect? I don't want to try it and don't intend to open it now, because I save it for the next 10-15 years, now, I have doubts if is it really safe to continue it or if I must move my balance to another hardware wallet, Please give me instruction what the best, I'm still young and only have bitcoin as my current investment for future.
Here is the problem. Ledger is one of many hardware wallet brands that use a secure element chip whose sole job was to keep your seed and private keys offline. Meaning, it was supposed to be impossible that sensitive information leaves the chip and gets transmitted online. Turns out, that's not the case at all. The Ledger Nano X secure element can change its behavior after a software update, allowing you to "voluntarily" share your keys online with 3rd-parties. Soon, the same thing will be possible for the Nano S Plus. Apparently, only the old Nano S can't implement this feature.
In theory, unless you update to the newest firmware that unlocks seed-share and approve it physically by pressing the buttons on your Nano, the feature won't work. That's just the theory. It's again a matter of trust. We have trusted Ledger to protect our keys and we trusted them when they said nothing can ever leave the safe enclosure of the secure element. That trust is now gone because the most valuable data can, in fact, leave the SE.
Now you have to make up your own mind. Are you going to trust that what they have said about Ledger Recover is accurate, and that they need your approval to share your seed? Or, can they just do it with or without your consent? They have already told us that data was always obtainable from secure element chips, they just didn't activate that feature before.