Malware can be viruses, trojans, worms or ransomware. The viruses affect system functioning and makes the system slow whereas trojans gather data in the background without getting detected in general scan.
Fraudsters put advertisements for electronic goods, vehicles, clothing, etc. on social media or portals for sale. Once someone contacts them for the same, they are asked to make advance payment for the goods.
In this method, the accused retrieve information on customers of various insurance firms and contact them on pretext of getting them refund for insurance or threatening them with discontinuation of the accounts for not accessing it regularly.