Another reason why IE is more vigorously targeted: it is patched the least. Some systems deliberately run downrev versions of IE for various reasons (they are p

Another reason why IE is more vigorously targeted: it is patched the least. Some systems deliberately run downrev versions of IE for various reasons (they are pirated and thus afraid of Windows Update, or they are based on a frozen IT build of Windows which only gets updated quarterly, or whatever). So, even if Microsoft releases a patch for this latest IE vulnerability today, millions of PCs will remain unpatched for months. Valuable targets -- members of the next botnet. By comparison, Chrome is much more aggressive about updating itself. For example, consider Chrome 6.0's short lifespan: http://www.netmarketshare.com/browser-market-share.aspx?qprid=34&qpcustom=Chrome+7.0,Chrome+6.0,Chrome+5.0&qptimeframe=D&qpsp=4261&qpnp=60&sample=40 http://www.netmarketshare.com/browser-market-share.aspx?qpri...