IT is worrisome to learn that a shady trade of duplicate mobile SIMs is going on in the country which may turn out to be a grave danger for both the mobile operators and the government. It is learnt that a large number of active mobile SIMs are available in the market which have been registered under duplicate identity card. A group of dishonest traders are selling these to the criminals who are using them to commit crimes of various nature. These mobile SIMs are sold in the market at a high price because of their high demand. I think the law-enforcement agency should handle this matter carefully and arrest those who are engaged in this shady trade. I think the common people should also be careful while getting their SIMs as their awareness only can prevent them being in possible danger and harassment. We are living in a digital world and we have to be careful about our own safety and security so that the criminals cannot befool us and throw us into trouble.