This read-only counter tracks the number of failed SSO authentication token attempts on the MAG Series gateway, the failure counterpart to the total attempts tracked by jnxMagSSOAuthTokenAttempt. An administrator watches this for unexpected spikes, since a rising rate of SSO authentication failures can indicate misconfigured client applications, an expired identity-provider certificate, or an attacker attempting to guess or replay authentication tokens. For example, a sudden surge in failed tokens concentrated from a single source IP would be a strong signal of a credential-stuffing or brute-force attempt against the SSO service.