#CryptoSecurity101 Key Security Principles

1. Secure Storage of Private Keys

Cold wallets / hardware wallets (Ledger, Trezor, Coldcard) are the safest: they keep your keys offline, protecting against malware and hackers.

Avoid storing keys online or on exchanges, as centralized wallets can be vulnerable to hacks and bankruptcies.

2. Backup and Recovery

Regularly back up your seed phrase or wallet files, store them in secure physical locations (such as safes or separate locations).

Consider splitting the seed phrase and storing parts in different places to ensure recovery in case of disaster.

3. Strong Authentication (2FA)

Enable two-factor authentication on all services that allow it, and prefer apps like Google Authenticator or Authy instead of SMS, as they are more secure against SIM swap attacks.

4. Strong and Unique Passwords

Use passwords of at least 12–16 characters with a mix of uppercase letters, lowercase letters, numbers, and symbols.

Do not reuse passwords; use a secure password manager like LastPass, KeePass, or similar.

5. Protection Against Phishing and Fake Sites

Bookmark the official sites of exchanges and wallets; do not enter via links from unknown emails or messages.

Be wary of unsolicited communications asking for information — even “legitimate representatives” would not contact you first asking for data.

6. Network Security

Avoid using public Wi-Fi without protection; if you do, always connect a reliable VPN (NordVPN, ProtonVPN…).

Secure your home network: change router passwords, update software, activate firewalls, and encrypt your Wi-Fi.

7. Digital Cleaning and Anonymity

Do not publicly brag about your cryptocurrency holdings to avoid physical attacks such as “wrench attacks” or extortion.

Minimize your digital footprint: avoid exposing your wealth on social media or public forums.