This brother was robbed of 170,000!! It's best for everyone to keep their coins on the exchange; the risk of being robbed when keeping them in a wallet is too high, especially with certain wallets, as theft has happened more than once or twice.
If you really need to keep them in a wallet, be sure not to take a screenshot of the mnemonic phrase, or store it in a folder. Also, when entering it, do not paste it with one click. Be very, very careful; once stolen, it's hard to recover.