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 "identifying user behavior from residual data in cloud based synchronized apps"):
  Abstract: As the distinction between personal and organizational device usage continues to blur, the combination of applications that interact increases the need to investigate potential security issues. Although security and forensic researchers have been able to recover a variety of artifacts, empirical research has not examined a suite of application artifacts from the perspective of high-level pattern identification. This research presents a preliminary investigation into the idea that residual artifacts generated by cloud-based synchronized applications can be used to identify broad user behavior patterns. To accomplish this, the researchers conducted a single-case, pretest-posttest, quasi experiment using a smartphone device and a suite of Google mobile applications. The contribution of this paper is two-fold. First, it provides a proof of concept of the extent to which residual data from cloud-based synchronized applications can be used to broadly identify user behavior patterns from device data patterns. Second, it highlights the need for security controls to prevent and manage information flow between BYOD mobile devices and cloud synchronization services. #R##N#Keywords: Residual Data, Cloud, Apps, Digital Forensics, BYOD

Includes members:
  Member "using smartphones as a proxy for forensic evidence contained in cloud storage services":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "a bleeding digital heart identifying residual data generation from smartphone applications interacting with medical devices")
  Member "investigating information security risks of mobile device use within organizations":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "android anti forensics modifying cyanogenmod")

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)