According to CoinMeta, the Cold Card hacking incident has drawn widespread attention, with nearly 5,000 wallets being stolen and a total loss exceeding 100 million US dollars. Although the incident is regrettable, analysis suggests that users' panicked reactions regarding self-management of their assets have been significantly exaggerated. Data shows that there are currently over 22 million Bitcoin addresses holding assets worth more than 100 dollars each, and this incident only affects 0.02% of them. Many victims used less secure wallets, whereas there are many well-known brands in the market (such as Ledger and Trezor) that offer more secure options. Analysis points out that users are more prone to making mistakes when setting up and managing private keys, and it is recommended that users add strong passwords to their main private keys to enhance security.