See https://security.stackexchange.com/questions/11493/how-hard-is-it-to-intercept-sms-two-factor-authentication https://security.stackexchange.com/questions/11

See https://security.stackexchange.com/questions/11493/how-hard-is-it-to-intercept-sms-two-factor-authentication https://security.stackexchange.com/questions/11493/how-hard-... Add to this that the legal encryption limit for GSM is India is just 40 bits and you can easily wardrive SMSs