I wrote several posts on Apple security holes and how to bypass lockscreen. Security researches found also similar flaw on Samsung devices. Even though this doesn’t work on all Samsung devices but it works and it is a serious issue on those devices. I can’t explain it in words and you need to be patient and fast but in order for bad men to gain access to your smartphone few minutes is nothing. You can try it and if it happens to your device you can contact Samsung to help you protect your device and your personal data. Watch the video for the demonstration.
Disable lockscreen on Samsung devices