If using frozen corn, thaw the corn to room temperature and drain off any liquid.
Combine the corn, black beans, tomatoes, onion, bell pepper, jalapeño, and cilantro in a large mixing bowl.
Add the lime juice, oil, salt, cumin and black pepper. Stir well.
Refrigerate until ready to serve.
Notes
To store: Leftover corn salsa should be transferred to an airtight container, placed in the refrigerator, and used within 3 to 5 days. Give it a good stir before using.