Table 2. Success rate, time per authentication task, and errors per task PIN, PATTERN, GRAPHICAL and FINGERPRINT authentication techniques.

	Login Success Rate		Authentication Time (s)			Errors per Attempt (n)
	n	%	Mean	Median	SD	Mean	Median	SD
PIN	100	98	4.71	3.86	2.43	0.02	0	0.04
Pattern	101	99	3.44	3.23	1.37	0.04	0	0.06
Graphical	102	100	6.76	6.14	2.88	0.02	0	0.06
Fingerprint	87	85	26.97	14.74	34.88	1.46	0.25	3.19

SD, standard deviation