Correction to: Mobile Networks and Applications (2021)

https://doi.org/10.1007/s11036-021-01789-3

The original version of this article, published on 6 June 2021, the authors have found an error in the published version of the paper. Figure 6 is duplicated and the same image is captured as figure 5. Correct figure 5 is shown below.

Fig 5
figure 1

Number of successful authentications of March 2019 and 2020 comparison

Original article has been corrected.