Heat olive oil in a large pot over medium heat.
Add diced onion and sauté until translucent.
Stir in the minced garlic and diced jalapeños, cooking for an additional minute.
Add the chicken breast to the pot and season with salt and pepper.
Pour in the chicken broth and bring to a simmer.
Stir in the white beans, corn, cumin, and chili powder.
Simmer for 20-25 minutes, allowing the flavors to meld.
Remove the chicken, shred it, and return it to the pot.
Adjust seasoning with salt and pepper as needed.
Serve with a dollop of sour cream or Greek yogurt on top.