vaihtokoodin

Vaihtokoodin, also known as a verification code or OTP (One-Time Password), is a temporary code used to verify the identity of a user during the login process or for other security-sensitive transactions. It is typically sent to the user via a secondary channel, such as SMS, email, or a dedicated authentication app, and is valid for a short period of time, usually a few minutes. Vaihtokoodin serves as an additional layer of security, ensuring that only the legitimate user has access to the account, even if their primary credentials (such as a password) have been compromised. This method is widely used in online banking, e-commerce, and other sensitive applications to protect against unauthorized access and fraud. The use of vaihtokoodin is part of a broader strategy known as multi-factor authentication (MFA), which combines two or more verification factors to enhance security.