We take security seriously and keep improving it by applying the best practices and security standarts. And Two-Factor Authentication (2FA) is the one of these security improvements.
2FA adds an extra security step on login asking a token which is produced from your authorized device. So even you accidentally expose your password, it protects your account from unauthorized logins.
You can use Google Authenticator or any other TOTP app to create your One-Time Password token.
Two Factor Authentication is optional to use, but we highly recommend it.
Go to User Profile section to turn on 2FA on your account.