Bitcoin Ledger and other hardware related questions.

[HCP]

I believe even cryptosteel is prone to being stolen and / or rust taking place on it and messing up with the paper inside (as I know about a few use cases where metal changes its form in size and shape due to various air / oxygen / iron related issues and this could be dangerous while removing the paper as it may also end up tearing paper into many pieces).

Just FYI, you generally don't store paper in a "cryptosteel" type seed mnemonic storage device.

The idea is that you either engrave or "punch" the seed mnemonic directly into the metal... or you use laser engraved letter "tiles" to piece the words together.

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[jerry0]

When you say keyboard, you mean wired or wireless or both?  So basically if someone know you have crypto in your computer and had access to your keyboard, they can basically put something there and when its connected to your laptop, you are screwed?

[bitmover]

When you say keyboard, you mean wired or wireless or both?  So basically if someone know you have crypto in your computer and had access to your keyboard, they can basically put something there and when its connected to your laptop, you are screwed?

I think they are talking about keyloggers, access to your copy and paste clipboard, etc.

If the attacker had physical access to your computer or keyboard or hardware wallet this is certainly a problem, and I would consider those devices permanently compromised (unless if you are dealing with small amounts of btc). Most of successful hardware attacks had physical access to the device.

There are also some attacks which you copy the correct address and paste the attackers address (when making transactions). This is why ledger nano confirms the address in the device's led. Maybe he was talking about that as well.

[The Sceptical Chymist]

Would you say its good to be always paranoid though? 

Cautious yes, paranoid no.  I think you're being paranoid about the risk of getting some malware installed onto something from a power bank.  I believe I already mentioned that you don't charge the Ledger from a power bank, so there's no need to ever connect the two.  As far as a power bank being able to infect a laptop....that's highly unlikely IMO.  There certainly hasn't been a case of that happening yet.

There is "being cautious" and then there is "being paranoid".

Right-o, and I think he's teetering toward the paranoid side.