We are not experts in HID either so we’re both kinda poking in the dark… but from what I gather, “HID Corporate 1000” is a family of tech, and it involves both 125khz and 13.56mhz card frequencies. I have also read that the 125khz side of things is basically their ProxCard tech, which is insecure and easily clonable to our xEM chip… though there are some quirks you should watch out for while cloning things.