human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "web based cryptojacking in the wild"
  Abstract: With the introduction of memory-bound cryptocurrencies, such as Monero, the implementation of mining code in browser-based JavaScript has become a worthwhile alternative to dedicated mining rigs. Based on this technology, a new form of parasitic computing, widely called cryptojacking or drive-by mining, has gained momentum in the web. A cryptojacking site abuses the computing resources of its visitors to covertly mine for cryptocurrencies. In this paper, we systematically explore this phenomenon. For this, we propose a 3-phase analysis approach, which enables us to identify mining scripts and conduct a large-scale study on the prevalence of cryptojacking in the Alexa 1 million websites. We find that cryptojacking is common, with currently 1 out of 500 sites hosting a mining script. Moreover, we perform several secondary analyses to gain insight into the cryptojacking landscape, including a measurement of code characteristics, an estimate of expected mining revenue, and an evaluation of current blacklist-based countermeasures.

Connected through hyperedge HE-1 (induced by source paper "is cryptojacking dead after coinhive shutdown"):
  with members:
    - "a first look at browser based cryptojacking"
    - "end to end analysis of in browser cryptojacking"

Connected through hyperedge HE-2 (induced by source paper "a first look at the crypto mining malware ecosystem a decade of unrestricted wealth"):
  with members:
    - "a first look at browser based cryptojacking"
    - "digging into browser based crypto mining"
    - "end to end analysis of in browser cryptojacking"
    - "truth in web mining measuring the profitability and cost of cryptominers as a web monetization model"
    - "hardening stratum the bitcoin pool mining protocol"

Connected through hyperedge HE-3 (induced by source paper "dissecting android cryptocurrency miners"):
  with members:
    - "a first look at the crypto mining malware ecosystem a decade of unrestricted wealth"
    - "a first look at browser based cryptojacking"
    - "digging into browser based crypto mining"
    - "end to end analysis of in browser cryptojacking"
    - "truth in web mining measuring the profitability and cost of cryptominers as a web monetization model"

Connected through hyperedge HE-4 (induced by source paper "crypto mining makes noise"):
  with members:
    - "digging into browser based crypto mining"
    - "analysis of bitcoin pooled mining reward systems"

Question: Please tell me which class the center node 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)