How do I know if 2FA account tokens are encrypted?

As a concerned user of cryptocurrency and financial services, I'm keen to understand the security measures implemented to protect my account. Specifically, when it comes to Two-Factor Authentication (2FA), how can I verify if the account tokens generated are encrypted? Encryption is crucial to ensure the tokens' confidentiality and prevent unauthorized access. Understanding this aspect of security helps me make informed decisions about which services to trust with my financial information. Can you elaborate on the indicators or methods I should look for to ascertain the encryption status of my 2FA tokens?