Half of Used Phones Still Contain Personal Info
jhernik writes "More than half of second-hand mobile phones still contain personal information of the previous owner, posing a risk of identity fraud. A study found 247 pieces of personal data stored on handsets and SIM cards purchased from eBay and second-hand electronics shops. The information ranged from credit card numbers to bank account details, photographs, email address and login details to social networking sites like Facebook and Twitter. According to data security firm CPP, 81 percent of previous owners claim they have wiped personal data from their mobile phones and SIM cards before selling them. However, deleting the information manually is 'a process that security experts acknowledge leaves the data intact and retrievable.'"
Also remember that the iPhone jailbreaks are actually remote exploits run on a website. iPhones are basically completely rooted just by visiting a website. Great security there, tho Apple users are posting is a "good" thing as it allows them to root their phone.