His approach involves taking a muscle biopsy from a patient's thigh and then growing the tissue sample in the lab for three weeks until there are 600 million to 800 million of the myoblast cells.
The participants were asked to bring a sample of their own junk mail or newspapers to the lab and were assured that researchers wouldn't throw out anything they wanted to keep.
In a report published late Tuesday, Citizen Lab said that it had also found a FinFisher sample hiding in a document about Malaysia's upcoming general election.