According to @GoChapaa, the biggest wallet fears are losing private keys, getting hacked, and sending funds to the wrong address, highlighting core execution and custody risks for traders (source: @GoChapaa). On-chain transfers are irreversible on both Bitcoin and Ethereum, so a wrong-address send results in permanent loss, elevating operational risk when moving collateral, rebalancing, or arbitraging (source: Bitcoin.org; Ethereum Foundation). Traders can reduce single-point-of-failure risk by using multisig wallets such as Safe that require multiple approvals before moving capital (source: Safe). Keeping keys offline with a hardware wallet and verified firmware reduces malware and account-takeover risk during volatile market windows (source: Ledger). Checksummed addresses under EIP-55, withdrawal address allowlists, and small test transfers help prevent typos and address poisoning before sending size between exchanges and DeFi protocols (source: EIP-55; Binance; MetaMask).