Ryan's assessment of Jane was based on his conversations with Axler and later with Nadja. The decker seemed to be an invisible entity in the Matrix. Even though she was extremely accomplished, few in the Matrix knew who she was because she never posted as herself. Nadja had told Ryan that Jane had been doing Dunkelzahn's decking for many years, and she had acted as sort of an über-fixer. She had done a good deal of the management of the dragon's shadow ops, tracking the activities of other fixers, who never realized that they were working for Dunkelzahn.