Its no longer news that an ICO in Japan has lost over $400 million to hackers. They promised to pay back investors who invested in their ICO. Thsi is a huge loss. After I read that news, I began to wonder. How safe is Bitcoin and Other altcoins? What measures should we take to avoid being hacked ?
We better used a bitcoin wallet has private keys so that no one can access our bitcoin wallet or you can used also a hardware wallet like "Ledger" that's one of the safest wallet i know. About ICO, many ICO has complete datails and white paper but in the end its become a scammer.