The highest level of safety factor: hardware walletPrepare a onekey. If you don't have one, you can buy one at a very cheap price. The official website is https://crowdfund.onekey.so?ref=OVGLHQ (there should be a rebate, but I have not successfully obtained it before)After getting it, activate the wallet OneKey First Generation Hardware Wallet Activation Tutorial – OneKey - Help CenterDownload the onekey browser plugin https://onekey.so/plugin (same as the little fox)pictureInsert hardwa...