Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

You can use cookies to track usage history


I can delete cookies to obscure usage history


You can combine it with user PC fingerprinting


You can also just ask for a login…


You could also make the wannabe user buy a $500 retinal scanner and use biometric ID ...




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: