🔵 There is no absolute security – it is necessary to protect against theft and loss of access. 🔵 It is recommended to use a dedicated crypto device with a minimum number of installed applications. 🔵 Key backups should be stored separately. 🔵 For each exchange, use a unique email, password, and hardware two-factor authentication, avoiding SMS confirmation. 🔵 Enable whitelisting of withdrawal addresses and do not share API keys with third parties, disabling withdrawals via API. 🔵 Hardware wallets are not absolutely secure. 🔵 Think in advance about the mechanism for transferring crypto assets to heirs without prematurely disclosing keys.