The best way to keep your bitcoins safe, is to use a hardware wallet that have stronger cryptography that web wallets.
If you store your coins in exchanges you are most likely to lose them, because exchanges receive the most cyber attacks.
Even hardware are not completely safe if some damage occurs to the device with forgetting 25 words to restore old wallet with new device but it still best choice along with paper wallet . right now people fear the dump only because many bought bitcoin at high price .
when someone lost their private key means he help to reduce circulating supply and increase BTC price..he he