@inproceedings {192394, author = {Hassan Khan and Urs Hengartner and Daniel Vogel}, title = {Usability and Security Perceptions of Implicit Authentication: Convenient, Secure, Sometimes Annoying}, booktitle = {Eleventh Symposium On Usable Privacy and Security (SOUPS 2015)}, year = {2015}, isbn = {978-1-931971-249}, address = {Ottawa}, pages = {225-239}, url = {https://www.usenix.org/conference/soups2015/proceedings/presentation/khan}, publisher = {USENIX Association}, month = jul }