Which characteristic is not linked to increased vulnerability of foods to attack?

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The risk increases when a food product is easy to reach, easy to consume, and provides a welcoming environment for pathogens. Wide distribution means contaminated items can affect many people across locations, making tampering more impactful and harder to detect. A ready-to-eat form skips cooking steps that might kill contaminants, so people can be exposed immediately. High moisture content supports the survival and potential growth of microorganisms, increasing the chances that contamination leads to illness. Long shelf life by itself doesn’t inherently raise vulnerability; shelf-stable products are often sealed, preserved, or processed in ways that don’t automatically create more opportunities for attack. So, long shelf life is not linked to increased vulnerability in the same way as the other characteristics.