human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "privacy leakage in mobile computing tools methods and characteristics"):
  Abstract: The number of smartphones, tablets, sensors, and connected wearable devices are rapidly increasing. Today, in many parts of the globe, the penetration of mobile computers has overtaken the number of traditional personal computers. This trend and the always-on nature of these devices have resulted in increasing concerns over the intrusive nature of these devices and the privacy risks that they impose on users or those associated with them. In this paper, we survey the current state of the art on mobile computing research, focusing on privacy risks and data leakage effects. We then discuss a number of methods, recommendations, and ongoing research in limiting the privacy leakages and associated risks by mobile computing.

Includes members:
  Member "privacy in sensor driven human data collection a guide for practitioners":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "offline behaviors of online friends")
  Member "i know what leaked in your pocket uncovering privacy leaks on android apps with static taint analysis":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "storydroid automated generation of storyboard for android apps")
  Member "a case of collusion a study of the interface between ad libraries and their apps":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "android inter app communication threats and detection techniques")
  Member "longitudinal analysis of android ad library permissions":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "pyronia redesigning least privilege and isolation for the age of iot")
  Member "participatory privacy enabling privacy in participatory sensing":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "deeprotect enabling inference based access control on mobile sensing applications")
  Member "adsplit separating smartphone advertising from applications":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "an empirical study of usages updates and risks of third party libraries in java projects")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.CR(Cryptography and Security)