Kristen Diаmоnd wоrked in the mаilrоom аt B&R Industries. When attaching postage to the outgoing mail, she would search for payments being sent to a specific vendor, K. D. Sand. She intercepted these checks and carefully changed them to appear payable to K. Diamond. She then endorsed the checks with her own name and deposited them into her personal bank account. What type of scheme did Kristen commit?