Which of the following errors is most likely to render a security interest unperfected?

1. The security agreement misspells the debtor's name as "Walter Whyte" instead of "Walter White."

2. The financing statement misspells the debtor's name as "Walter Whyte" instead of "Walter White."

3. The financing statement misspells the secured party's name as "Jesse Pinkmen" instead of "Jesse Pinkman."

4. The financing statement erroneously identifies the debtor's address as "101 Blue Street" instead of "1001 Blue Street."