It depends on how you sign in to VA.gov.

• If you set up a verified VA.gov account through ID.me, you need to set up 2-factor authentication. This gives you an extra layer of security. You can only get into your account after you’ve signed in with a password and a 6-digit code sent to your phone. Authentication helps to make sure no one but you can access your account—even if they get your password.
• If you sign in to VA.gov using your existing Premium My HealtheVet or Premium DS Logon account, setting up 2-factor authentication is optional. You can set it up when you sign in or any time from your VA.gov profile.
• If you sign in to VA.gov using your existing basic or Advanced My HealtheVet or basic DS Logon account and don’t want to verify your identity, you don’t need to add 2-factor authentication. But you won’t be able to use the site’s tools that require you to verify your identity. You won't be able to check your claim status or send a secure message to your doctor.