However, there are also great risks in establishing a national DNA database. The first is the risk of information leakage. DNA is the core and most secret information of an individual. Many personal characteristics can be interpreted from DNA information, including personality, physical appearance, hobbies, potential, disease risk and many other aspects. Once personal DNA information is leaked and misused, the consequences are unimaginable.
In addition, the widespread use of human DNA information still has ethical risks. For example, in a family, when there is a non-biological relationship between two generations, the family may live happily without knowing it, but the DNA database will no longer make people "difficult to be confused", but it may make these families unhappy from now on. If DNA information is stolen and used for cloning or recombination, it will subvert the existing social order in family and marriage and bring ethical crisis to mankind.