Mobile phone with restriction on use thereof and method for restricting use of mobile phone

摘要

A mobile phone improves the operability without inputting any security codes by authenticating whether or not a user is a right user of the mobile phone by using his/her face. Further, the security of the mobile phone is improved due to non-authorization when a person other than the right user of the mobile phone. The change in using situation of the mobile phone is detected and then an authenticating function of the current user of the mobile phone starts.