Safe to cook chicken in slow cooker?

Are slow cookers safe for cooking chicken and meat? I've read that keeping food at such a low temperature might

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Slow Cooker Chicken Breast with Asian Flavors - Craving Tasty

Slow Cooker Roast Chicken Recipe {It's So Easy!}

Juicy Slow Cooker Chicken Breast Recipe

Slow Cooker Bang Bang Chicken - The Magical Slow Cooker

Slow Cooker Chicken Breast (Easy & Healthy)

Slow Cooker Honey Garlic Chicken Recipe - TipBuzz

Cooking Raw Chicken in Slow Cooker

Slow Cooker Chicken Thighs - Cook At Home Mom

Slow Cooker Whole Chicken with Garlic + Herbs - Ella Claire & Co.