Based on GenmCorp translation, Wazu said he linked to Zero-One just like Izu. I think all information about Zero-One gained by Izu will also transfered into Wazu. The reason why they didn't have backup system, maybe it is because the "backup" must also "alive" to protect their own data.
Inside lab, we see there is 4 prototype for every generation, if Izu exist to preserve data after Wazu, maybe there is two more Humagear who linked with Zero-One. Even though by look, these prototype look "evil".