This email scam is trying to take control of your bank accounts don’t click on the link in the email if you get this one
You will not be able to access your Intuit QuickBooks account without Intuit Security Tool (IST™) after 31th of October, 2011.
You can download Security Tool here — https://www.securityinfo.com/.
After a successful download please run the setup for an automatic installation, then login to Intuit Quickbooks online to check that it is working properly.