Methods and systems are disclosed for genetic manipulation and for securing communication of genetic sequences. In one example, a sequence security system comprises a security device communicatively coupled to a separator module, the separator module comprising a first separator device and a second separator device. The security device may store instructions in non-transitory memory that are executable by a processor to receive a source sequence from the first separator device at a receiving module, receive manipulation instructions from the second separator device at the receiving module, and apply the manipulation instructions to the source sequence to form a target sequence via a transforming module. Thus, the source sequence and the manipulation instructions may be maintained separate from one another until the source sequence and the manipulation instructions are received at the receiving module, for example.