od. CCoinbase Help
If possible, consider using a security key or passkey rather than relying exclusively on SMS. Keep your authentication devices secure and make sure you have an appropriate backup method available.
Never share your password, authentication codes, security-key credentials, or other sensitive account information with another person.
When signing in from a new computer, browser, or mobile device, Coinbase may require additional confirmation. This is designed to help prevent unauthorized access.
If you receive a device-confirmation request that you did not initiate, do not approve it. Instead, review your account security and investigate the activity.
Coinbase also advises users to be cautious with emails and suspicious links. When you need to access your account, navigate directly to the official Coinbase website rather than relying on an unexpected mess