Rat Population in the Cypherpunks Mailing List: According to Zeynep, an expert in pest control, there has been a major increase in the rat population in the Cypherpunks mailing List in the past years. This can be done by stopping them getting into the cypherpunks mailing list in the first place, and by reducing access to any information in the. Cypherpunks Mailing list should block any entryways and gaps Zeynep noted that it is a good idea to start preventative measures as soon as possible as rats that are settled will tend to breed, which can lead to a further increase in the population and a major infestation in the cypherpunks mailing list.