Does the subject want to ask "Why do fingerprints change in the dynamic card space"? Will not change. Fingerprints are the lines on the fingertips of human fingers, which are composed of uneven skin. Human fingerprints are lifelong. The fingerprint unlocking of the dynamic card space setting will not change. Dynamic Card Space is the official APP of CITIC Bank Credit Card Center, and it is the software for CITIC Credit Card Center to operate and serve customers.