Crypto Security 101
Security in cryptocurrencies is key in 2025, especially against digital and physical threats. First, store long-term in cold wallets: physical devices (Ledger, Trezor), disconnected from the internet, reduce the risk of hacking.
For frequent transactions, use hot wallets with utmost caution: do not connect your main wallet to unknown projects.
Enable two-factor authentication (2FA) on all platforms, use strong and unique passwords, and manage your keys in a secure manager.
On exchanges, create API keys with limited permissions, rotate passwords, enable IP whitelists, and monitor active sessions.
Additionally, make offline backups of the seed phrases, preferably on paper or metal plates. Disconnect them when not in use. Consider multisig configurations to protect yourself from physical attacks like "wrench attacks" (violent coercion), which have increased with the rise of crypto value.
In summary: use cold wallets for savings, hot wallets with caution, enable 2FA, strong passwords, protect keys and seeds offline, consider multisig, and maintain discretion in your holdings.