1. Not Backup Key
2. Electricity Billing Mining More
3. Lunes In Phishing Sites
4. Buy Coin With Rumors
5. Create a weak password
6. Steal With Stealth ICO
With cryptocurrency, no bank or other institution or regulation will protect you in the event of a loss.
Yes thats all is the problem that can affect us but if you keep searching to know more about the list you have you can avoid that . Before you go first is to keep searching or research some important that can help you. Im not a really good about this but i know some techniques that can help me to not lose about this especially in crypto and ico`s.