One of the major drawbacks of PUFs which is preventing it quite a bit from actually going to commodity devices is these attacks known as model building attacks.
प्रत्यक्षात कमोडिटी डिव्हाइसकडे जाण्यापासून थोडासा रोखणारी पीयूएफची एक मोठी त्रुटी म्हणजे हे हल्ले मॉडेल बिल्डिंग अटॅक म्हणून ओळखले जातात.