A Survey on Security and Privacy Issues in Contact Tracing Application of Covid-19

B. Sowmiya, V. S. Abhijith, S. Sudersan, R. Sakthi Jaya Sundar, M. Thangavel, P. Varalakshmi

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)


In response to the coronavirus (COVID-19) pandemic, Government and public health authorities around the world are developing contact tracing apps as a way to trace and slow the unfold of the virus. There is major divergence among nations, however, between a “privacy-first” approach that protects citizens’ information at the price of very restricted access for public health authorities and a “data-first” approach that stores massive amounts of knowledge that, whereas of immeasurable price to epidemiologists. Contact tracing apps work by gathering information from people who have tested positive for the virus and so locating and notifying individuals with whom those people are in shut contact, oftentimes by use of GPS, Bluetooth, or wireless technology. All of the user’s information is employed and picked up, the study found that users’ information would be created anonymous, encrypted, secured, and can be transmitted on-line and stored solely in an aggregated format. Contact tracing apps use either a centralized or a decentralized approach to work the user’s information. Apps that use a centralized approach have high privacy risks. In this paper, the researcher’s contributions related to the security and privacy of Contact tracing apps have been discussed and, later research gaps have been identified with proposed solutions.

Original languageEnglish
Article number136
JournalSN Computer Science
Issue number3
Publication statusPublished - May 2021


  • AES encryption
  • Cloud storage
  • Data security
  • Tracing apps
  • User’s privacy

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Networks and Communications
  • Computer Science Applications
  • General Computer Science
  • Artificial Intelligence
  • Computer Graphics and Computer-Aided Design


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