@inproceedings {mecke2019soups1, title = {Communicating Device Confidence Level and Upcoming Re-Authentications in Continuous Authentication Systems on Mobile Devices}, author = {Lukas Mecke and Sarah Delgado Rodriguez and Daniel Buschek and Sarah Prange and Florian Alt}, booktitle = {Fifteenth Symposium on Usable Privacy and Security ({SOUPS} 2019)}, year = {2019}, address = {Santa Clara, CA}, url = {https://www.usenix.org/conference/soups2019/presentation/mecke-confidence}, publisher = {{USENIX} Association}, }