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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteSecure both the sign-in path and the custody arrangement: protect your linked email and exchange account with unique passwords and strong multifactor authentication, restrict withdrawals where the platform allows it, and understand who controls the crypto’s private keys and how you can recover or withdraw assets. These safeguards reduce some account risks, but they cannot guarantee that a custodian will remain available or prevent every incident.
Know what exchange custody means
A crypto wallet does not hold cryptocurrency in the way a physical wallet holds cash. It holds private keys used to authorize transactions. With an exchange or other third-party custodian, the provider controls access to customers’ keys; with self-custody, the holder controls the keys and takes responsibility for securing them and maintaining recovery information. Coinbase explains this distinction in its guide to exchanges and self-custody wallets.
This article focuses on assets kept with a provider. Account protections can make it harder for someone to access your account or withdraw funds without authorization, but they do not transfer key control to you or eliminate risks tied to the custodian itself.
Secure your linked email account first
Your email account may receive exchange alerts, new-device confirmations, and support messages. If someone gains access to it, they may be better positioned to interfere with your exchange account. Treat email as part of the same security boundary.
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- Effortlessly build your crypto portfolio via the all in one Ledger Wallet app: buy, sell, send, receive, swap, stake and more across popular blockchains. 15,000+ coins & tokens in a single dashboard. Keep a close eye on the market. Compare service providers. Track performance. Get timely alerts. Build your portfolio with confidence.
- Effortlessly build your crypto portfolio via the all in one Ledger Wallet app: buy, sell, send, receive, swap, stake and more across popular blockchains. 15,000+ coins & tokens in a single dashboard. Keep a close eye on the market. Compare service providers. Track performance. Get timely alerts. Build your portfolio with confidence.
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- Genuine Check: confirm your signer is authentic during setup with the Ledger Wallet app.
- Protect your signer: keep it in mint condition at all times with a bespoke Pod or Case to avoid scratches and everyday wear and tear.
- Use a strong, unique password for the email account. A password manager can generate and retain credentials that you do not reuse elsewhere.
- Enable the strongest multifactor authentication method your email provider supports.
- Review the email provider’s active sessions, recovery options, and security alerts; remove anything you do not recognize.
Strengthen exchange sign-in and review access
Set a unique exchange password and enable the strongest second factor that the provider supports. Coinbase recommends using a security key or passkey for 2-step verification in its account security guidance. Authentication options differ by provider, and a physical key must be compatible with both the exchange and your linked email service.
A FIDO-compatible physical security key is one possible way to implement stronger sign-in where supported. It protects an authentication step; it does not remove custody risk or make phishing impossible.
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- Review active sessions, recognized devices, and authorized applications in your exchange account.
- Revoke sessions or application access you do not recognize, then follow the provider’s official account-recovery instructions if access appears compromised.
- Keep recovery methods current and secure them as carefully as your password and second factor.
Reduce exposure to phishing and fake support
Go to the exchange through a saved bookmark rather than an unexpected sign-in link. Be cautious with unsolicited calls, messages, advertisements, and search results offering urgent account recovery; a convincing logo or familiar name does not verify who contacted you.
Coinbase warns about fake support numbers and websites. It says its staff will not ask for your password, verification codes, access to your email, remote-support software, or money to resolve an account issue. That is Coinbase-specific guidance; check the official help center of your own provider, reached independently, for its support practices. Never disclose a password or one-time verification code to someone who contacts you claiming to be support.
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Limit withdrawals with an address allowlist
If your provider offers withdrawal address allowlisting, enable it and add only addresses you have independently verified. Before sending, check both the destination address and the cryptocurrency network: an address can look plausible while being wrong for the asset or network you intend to use.
Allowlist behavior and waiting periods vary by product. Coinbase’s published help materials describe a 48-hour wait before a newly added address can be used on Coinbase.com, while Coinbase Global Exchange guidance describes a 24-hour period for some changes and Coinbase Exchange documentation describes 48-hour holds in some cases. These are not one universal Coinbase rule. Check the current instructions for your exact product before relying on a delay as a safeguard. See Coinbase’s address allowlist guidance.
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Evaluate the custodian, not just your login
Strong sign-in controls do not answer who controls the keys, how the provider holds assets, or what happens if you need access during a disruption. The SEC Office of Investor Education and Assistance’s Dec. 12, 2025 Crypto Asset Custody Basics for Retail Investors – Investor Bulletin says third-party custodians include exchanges and dedicated custody providers, and that accounts may use hot wallets, cold wallets, or a combination. The bulletin advises investors to research providers and ask whether storage is subcontracted.
Use these questions when reviewing a provider’s account terms and custody information:
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- Key control: Who controls access to the private keys associated with your assets?
- Storage and subcontracting: Does the provider hold assets directly or use another firm? Does it describe hot, cold, or mixed storage?
- Access and recovery: What identity checks, recovery steps, withdrawal limits, and procedures apply if you lose account access or the provider is disrupted?
- Fees: What account, transaction, transfer, setup, or closure fees apply?
- Customer agreement: What does the agreement say about custody, withdrawals, and access to assets?
Cold storage is a description of a storage approach, not a complete answer to provider, legal, operational, or access risk. The SEC bulletin states: “If the third-party custodian is hacked, shuts down, or goes bankrupt, you may lose access to your crypto assets.” The bulletin is educational material from the SEC Office of Investor Education and Assistance; it says it represents that office’s staff views and is not a Commission rule, regulation, or statement.
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