I've been reading some tutorials and watching some videos. I'm in a process of preparing an ICO. I was wondering what would be best to use for the ICO, paper or hardware?
We'll accept ETH, thus I was watching tutorial about
https://www.myetherwallet.com/1. What would be a disadvantage of me using a paper wallet?
2. Can I use external USB or HDD to store my keys?
Probably hardware wallet. Depends on the operating system alot, you should already know that windows systems are very risky, especially if storing huge amounts of money. Are you talking about sending funds currently or receiving them? If about receiving, then tails + paper wallet generator downloaded on a USB stick would be probably the best option for you. If you are actually doing an ICO, you should have enough money to hire a security expert on your company.