I would like to know if websites can access to my phone number (and other private information) while visiting them with my smartphone (T-Mobile Dash).
Today, I visited the following link:
and by mistake I press the "Go" bottom. After a couple of minutes, I receive a text message from thumbplay.com. My concern is how thumbplay.com was able to get my phone number (when I visited the previous link, the webpage showed me that I was using a Dash smartphone from T-Mobile). I did not typed my phone number!
How is this possible? How can avoid it?