The Security Credit Union All Credit Levels is a cdfi lender from Security Credit Union. Rewards: Security Cash Back Visa offers 2% cash back on every purchase.. Typical credit limit: $0 - $5,000. This product reports activity to your personal credit report. Security Credit Union is a financial institution located in Grand Blanc, MI, offering a range of personal and vehicle loans, as well as mortgages to its members. The credit union serves individuals and families in Michigan, providing accessible financial products tailored to meet their needs. Services include: personal loans, vehicle loans, mortgages. US Treasury certified CDFI Credit Union in Grand Blanc, MI. Membership required.