I personally loyal follower Android, But like everything there are always problems and Android could not be the exception.
Has discovered a serious Android vulnerability, Versions 2.2 (Froy) and past, which could allow the theft of data, it would give access to files on the terminal and the data stored on the SD card.
The person who discovered this Android vulnerability Thomas Cannon is indicating that the attacker could act through a HTML web page specially designed.
The main problem is that the Web browser versions Android they do not mention reports that it has downloaded the HTML file that leads to attack. And thus leave open the way to go and steal data from both the browser as SD card, data that could be saved passwords, photos, videos, web history, cookies, session, etc, etc.
To prevent such attacks (so far) are encouraged to download and use another Android web browser as Opera Mini.