Microsoft is officially killing SMS verification for personal accounts

PCWorld 

Microsoft is officially discontinuing SMS verification for personal account logins, pushing users toward more secure passkey authentication methods. PCWorld reports that SMS-based authentication represents a major fraud risk, prompting Microsoft's aggressive transition to biometric and PIN-based passkeys. Users should switch to passkeys soon, which use device-stored keys and biometric data for enhanced two-factor authentication security. For a while now, it's been possible to authenticate your Microsoft account logins by receiving a six-digit code via text message. Windows Latest now reports that SMS verification will be phased out shortly.