Today, while I was updating my passwords on a few of my social network profiles, I came across a serious security hole found in many of these services. During the course of the day, most of us are likely to rely on various devices such as mobile phones and desktop computers, to update our statuses on our social network profiles. When one uses a client such as Safari on the iPhone, or the web browser on a Blackberry, one’s login info is often cached on the browser. After I changed my Twitter password using the web browser on my Mac, I discovered that I was able to pull up my Twitter profile on my iPhone’s Safari browser and proceed to update my status successfully, all without being prompted to login again using my new password. (more…)

If you upgraded to the iPhone SDK 2.1 and found that the default SDK setting in the Project window is showing “Unknown SDK”, you can easily fix that by going to Menu->Project->Edit Project Settings. In the General tab of the Project Info Panel, set the Base SDK for All Configuration setting to “Simulator - iPhone OS 2.1″ or “Device iPhone OS 2.1″.