Last fact-checked: October 6, 2026. Laws, tax rules, and platform policies can change; confirm with the regulator or official notice.
What Allowlisting and 2FA Each Protect
Security settings are meant to slow attackers down. Use withdrawal whitelists, 2FA, email protection, and test transfers together.
Checks Before Changing Security Settings
- Crypto.com notes that adding a whitelisted address from an untrusted device requires a passkey, or your password plus a 6-digit authenticator code, and that a newly added address can carry a 24-hour withdrawal lock when the feature is enabled.
- Kraken requires confirmation for new withdrawal addresses and notes security-related withdrawal holds in some cases.
- Security features vary by exchange, but the core is protecting login, withdrawal addresses, and email.
Recommended Setup Order
- Enable authenticator-based 2FA instead of relying only on SMS.
- Use withdrawal whitelists for your own wallet or trusted exchange addresses.
- Protect your email with 2FA and review recovery options.
- After adding an address, send a small test transfer first.
- Review login devices, API keys, withdrawal history, and security alerts regularly.
Common Mistakes
- Securing the exchange account but leaving email unprotected.
- Saving backup codes as cloud photo screenshots.
- Turning off whitelists for convenience.
Official Sources
- Crypto.com: withdrawals, address allowlisting, and 2FA
- Kraken: adding and confirming a withdrawal address
- OKX: allowlist and new-address withdrawal lock
Related Reading
- Crypto Scam Checklist for Taiwan Investors
- Wrong Network Transfer? ERC-20 vs TRC-20 vs BEP-20 Explained
- Crypto Tax Guide for Taiwan 2026
FAQ
Q: Is SMS 2FA enough?
A: It is better than nothing, but authenticator apps or hardware keys are safer against SIM and social engineering risks.
Q: Will whitelists make urgent transfers harder?
A: Yes, but that friction is the point. It helps prevent instant theft.
Q: Should I review API keys?
A: Yes. Disable unused keys and never allow withdrawal permission unless absolutely necessary.
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