Google's Chrome, Apple's Safari Shared Vulnerability

Google's new browser, Chrome, has quite a few security-related features:

• Site blacklists to protect against malware and phishing
  
  
• A privacy mode (Incognito) to erase tracks of user activity.
  
  
• A thorough Clear Browsing Data dialog box.
  
  

But the really innovative feature in Chrome is the way Google has built the browser's rendering engine to run in a sandbox. Each browser tab is an isolated process running with limited capabilities. This means that if a malicious application were to run, it could not crash, interfere with or impede the others running in other tabs. It also means that the app cannot do things, like write to the file system, that could make the malicious app persistent.