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: "security risk assessment in internet of things systems"
  Abstract: Information security risk assessment methods have served us well over the past two decades. They have provided a tool for organizations and governments to use in protecting themselves against pertinent risks. As the complexity, pervasiveness, and automation of technology systems increases and cyberspace matures, particularly with the Internet of Things (IoT), there is a strong argument that we will need new approaches to assess risk and build trust. The challenge with simply extending existing assessment methodologies to IoT systems is that we could be blind to new risks arising in such ecosystems. These risks could be related to the high degrees of connectivity present or the coupling of digital, cyber-physical, and social systems. This article makes the case for new methodologies to assess risk in this context that consider the dynamics and uniqueness of the IoT while maintaining the rigor of best practice in risk assessment.

Connected through hyperedge HE-1 (induced by source paper "future developments in standardisation of cyber risk in the internet of things iot"):
  with members:
    - "a reference architecture for integrating the industrial internet of things in the industry 4 0"
    - "definition of internet of things iot cyber risk discussion on a transformation roadmap for standardisation of regulations risk maturity strategy design and impact assessment"
    - "sonification in security operations centres what do security practitioners think"
    - "if you can t understand it you can t properly assess it the reality of assessing security risks in internet of things systems"
    - "economic impact of iot cyber risk analysing past and present to predict the future developments in iot risk analysis and iot cyber insurance"
    - "future developments in cyber risk assessment for the internet of things"
    - "a cyber physical system based approach for industrial automation systems"

Connected through hyperedge HE-2 (induced by source paper "the social and psychological impact of cyber attacks"):
  with members:
    - "cyber security awareness campaigns why do they fail to change behaviour"
    - "cybercrime and you how criminals attack and the human factors that they seek to exploit"
    - "the group element of cybercrime types dynamics and criminal operations"
    - "privacy is the boring bit user perceptions and behaviour in the internet of things"

Connected through hyperedge HE-3 (induced by source paper "the industrial internet of things in the industry 4 0 supply chains literature review and future trends"):
  with members:
    - "future developments in standardisation of cyber risk in the internet of things iot"
    - "a reference architecture for integrating the industrial internet of things in the industry 4 0"
    - "sonification in security operations centres what do security practitioners think"

Connected through hyperedge HE-4 (induced by source paper "a review of critical infrastructure protection approaches improving security through responsiveness to the dynamic modelling landscape"):
  with members:
    - "reliability analysis of electric power systems using an object oriented hybrid modeling approach"

Connected through hyperedge HE-5 (induced by source paper "future developments in cyber risk assessment for the internet of things"):
  with members:
    - "if you can t understand it you can t properly assess it the reality of assessing security risks in internet of things systems"
    - "economic impact of iot cyber risk analysing past and present to predict the future developments in iot risk analysis and iot cyber insurance"
    - "internet of things iot a vision architectural elements and future directions"

Connected through hyperedge HE-6 (induced by source paper "are we there yet understanding the challenges faced in complying with the general data protection regulation gdpr"):
  with members:
    - "privacy is the boring bit user perceptions and behaviour in the internet of things"
    - "the perfect storm the privacy paradox and the internet of things"

Connected through hyperedge HE-7 (induced by source paper "if you can t understand it you can t properly assess it the reality of assessing security risks in internet of things systems"):
  with members:
    - "cyber security awareness campaigns why do they fail to change behaviour"

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)