Shanghai police database leak - Wikipedia
This is just a 30GB sample, the full leak is apparently much larger.
some data is just names, national IDs:
李兆军,230224198610041610
余慧,513122199001012028
张宇航,411421200401060037
张磊,130523198708171217
许绍玉,452826196206275131
邱长富,511123194806096080...