Table 6 Average accuracy scores for each question and user type
From: Evaluating smartphone-based dynamic security questions for fallback authentication: a field study
Question type | Accuracy score | ||
|---|---|---|---|
Legitimate | Strong | Naive | |
Call | 0.76 | 0.13 | 0.008 |
SMS | 0.46 | 0.08 | 0.002 |
Location | 0.69 | 0.29 | 0.038 |
App | 0.55 | −0.03 | −0.549 |
Music | 0.46 | −0.71 | −1.782 |
Activity | 0.42 | 0.06 | −0.240 |
Battery | 0.53 | −0.005 | −0.157 |