Home > Personal > Personal Lending > Mortgage > Mortgage Resources > Glossary > Security Interest Security Interest November 9, 2021 The lender’s right to take property that has been offered as security.You Might Also Like: Family MattersPreparing Financially for a Baby Everyday MoneyBudget Friendly Ideas for Thanksgiving Everyday MoneySenior Discounts and Savings Everyday MoneyStarting an Emergency Savings Account Living QuartersQuestions to Ask Your Home Inspector