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RFID technology is considered as an advanced identification system because it can communicate through wireless communication. However, the unprotected wireless communication channel opens up many possibilities of these tags being tracked by illegal reader which violates data privacy. Past works revealed that RFID tags would be the easy target of attacks related to system security and data privacy. The more advanced RFID technology can embed its applications in hand-held devices such as NFC type of mobile phones and biometric devices. This would again become vulnerable to attacks on its RFID components. Past works on RFID with anonymizers have dealt with lots of issues regarding system integrity and availability. However, the corresponding solutions have focused solely on the RFID tag. In this paper, we propose a trusted anonymizer-based RFID system integrity verification with emphasis on using mutual attestation process to provide system integrity to the whole system including every other component within RFID system.