The default `org.apache.ignite.internal.processors.authentication.IgniteAuthenticationProcessor` only supports authenticating thin clients with Basic authentication (login/password) while thick clients are considered trusted — When customizing security. Tension: the Security Processor code will be called from all kinds of sensitive contexts while processing requests. Outcome: write your own `org.apache.ignite.internal.processors.security.GridSecurityProcessor` implementation.

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