Quote from: Amevalentine on July 15, 2017, 03:34:04 PM

Quote from: Coding Enthusiast on July 06, 2017, 04:45:36 PM

As soon as you connect your USB disk to your computer, the Operating System and any program that is running on it can have access to your USB disk data (unless it is blocked by Anti virus or something). And it is not hard for a malware to copy itself on your USB disk (infect it so to speak) or read and copy its data.

For example if it is a bitcoin specific malware it can read your USB, analyze the files to see if it can find a wallet file, a list of private keys, ... and using those private keys it can broadcast it to the attacker or sweep them!

If you want to transfer sensitive information like your private keys, then do it on a clean and "air ~~tight~~ gapped ^{sorry, my English sucks sometimes!}" computer. You can use a live linux without persistence which is disconnected from the internet.

1. Make sure your computer clean from virus/rat. scan it first by antivirus, antikeylogger, etc
2. Turn off internet connection.
3. Make folder with different name on your other USB disk.
4. You can copy it safe now.

These things i would definitely do specially if those keys contained lots of bitcoins you will surely think up on secure transfer or copy of the key which n one could able to see non whats your doing. First of all having a clean computer free from virus would be really advisable and at the same time turn off internet since most remote viruses do really move on this way which do rely on internet connection to send out informations to its hacker.