In a large mixing bowl, combine the corn, cherry tomatoes, crumbled feta, and finely chopped red onion. Add the thinly sliced basil for a burst of fresh flavor. Drizzle with the extra-virgin olive oil and freshly squeezed lime juice. Gently toss the ingredients together, ensuring they are evenly coated. Finally, season the salad with kosher salt and freshly ground black pepper according to your taste preferences. Serve immediately or refrigerate for a short time to allow the flavors to meld.