A smile moved serpentine across Issan's face, there and gone before one could truly say it had existed. The way he'd asked about the Resistance sounded like a child eager for a sweet; all hope and eagerness, and all she wanted to do was snuff it out on first impulse.
"I have," she offered, her words slow and carefully chosen. "In the past. Only in small events, but I know enough of them to know they're a lot of foolish people, making foolish decisions." Her own words were quiet, but firm. She spoke not as a First Order believer, but as someone who was clearly shaken by the options at hand and saw little opportunity in either case. "But the First Order is hardly the best option either, wouldn't you say?"
They were dangerous words. Issan knew exactly what she was saying, and to who; it was either a mark of trust or of recklessness that caused her to speak such a traitorous question. The worst of it would be that she'd be reprimanded for tainting a soldier, for introducing thoughts that might sway him away from his life's work. It was already known to her superiors that she was a member of the Knights out of an agreement with her master, and not of her own volition (though that was a reputation she worked to maintain in order to hide her true purpose), so she felt little fear from repercussions.
And aside from that, no one would bemoan the loss of a single stormtrooper if this FN-2187 proved troublesome.