Unlike a bank account, cryptocurrency ownership is usually secured by cryptographic keys rather than a company that can reverse a mistake or theft on your behalf. That makes good personal security habits essential — mistakes in this space are often permanent.
Understand what you're protecting
A private key (or seed/recovery phrase) is what actually controls access to your crypto. Whoever has it, has full control of the funds — regardless of which device or exchange account it's connected to. Exchange account passwords protect your login, but your wallet's private key protects the assets themselves.
Core security habits
- Never share your seed phrase or private key with anyone, including people claiming to be "support staff." No legitimate platform will ever ask for it.
- Use a unique, strong password for every exchange or wallet, ideally generated and stored in a password manager.
- Enable two-factor authentication (2FA) using an authenticator app rather than SMS where possible, since SMS can be intercepted via SIM-swap attacks.
- Write recovery phrases down offline — on paper or a metal backup — rather than storing them in a photo, email or cloud note.
- Double-check URLs and links before entering credentials; phishing sites often look identical to the real platform.
Hot wallets vs cold storage
A "hot" wallet is connected to the internet (an exchange account or mobile app) and is convenient for everyday use, but more exposed to online attacks. "Cold" storage — a hardware wallet or an offline paper backup — keeps your keys disconnected from the internet, which is generally considered safer for larger, longer-term holdings.
Red flags to watch for
Be cautious of unsolicited messages promising guaranteed returns, "giveaways" that ask you to send crypto first, or urgent requests to move funds quickly. Scammers rely on urgency and pressure — a legitimate opportunity will still be there after you've taken time to verify it independently.