TY - JOUR AB - Purpose The use of mobile devices in handling our daily activities that involve the storage or access of sensitive data (e.g. on-line banking, paperless prescription services, etc.) is becoming very common. These mobile electronic services typically use a knowledge-based authentication method to authenticate a user (claimed identity). However, this authentication method is vulnerable to several security attacks. To counter the attacks and to make the authentication process more secure, this paper aims to investigate the use of touch dynamics biometrics in conjunction with a personal identification number (PIN)-based authentication method, and demonstrate its benefits in terms of strengthening the security of authentication services for mobile devices.Design/methodology/approach The investigation has made use of three light-weighted matching functions and a comprehensive reference data set collected from 150 subjects.Findings The investigative results show that, with this multi-factor authentication approach, even when the PIN is exposed, as much as nine out of ten impersonation attempts can be successfully identified. It has also been discovered that the accuracy performance can be increased by combining different feature data types and by increasing the input string length.Originality/value The novel contributions of this paper are twofold. Firstly, it describes how a comprehensive experiment is set up to collect touch dynamics biometrics data, and the set of collected data is being made publically available, which may facilitate further research in the problem domain. Secondly, the paper demonstrates how the data set may be used to strengthen the protection of resources that are accessible via mobile devices. VL - 12 IS - 1 SN - 1742-7371 DO - 10.1108/IJPCC-01-2016-0005 UR - https://doi.org/10.1108/IJPCC-01-2016-0005 AU - Teh Pin Shen AU - Zhang Ning AU - Teoh Andrew Beng Jin AU - Chen Ke PY - 2016 Y1 - 2016/01/01 TI - TDAS: a touch dynamics based multi-factor authentication solution for mobile devices T2 - International Journal of Pervasive Computing and Communications PB - Emerald Group Publishing Limited SP - 127 EP - 153 Y2 - 2024/04/19 ER -