Many schemes involve convincing the victim to purchase expensive gift cards and then to divulge the card information to the scammer. The scammer will often then steal the victim's credit card account information or persuade the victim to log in to their online banking account to receive a promised refund, only to steal more money, claiming that a secure server is connected and that the scammer cannot see the details.
After remote access is gained, the scammer relies on confidence tricks, typically involving utilities built into Windows and other software, in order to gain the victim's trust to pay for the supposed 'support' services. The scammer will typically attempt to get the victim to allow remote access to their computer. In English-speaking countries such as the United States, Canada, United Kingdom, Ireland, Australia, New Zealand & South Africa, such cold call scams have occurred as early as 2008, and primarily originate from call centers in India.
Such calls are mostly targeted at Microsoft Windows users, with the caller often claiming to represent a Microsoft technical support department.
A technical support scam refers to any class of telephone fraud activities in which a scammer claims to offer a legitimate technical support service, often via cold calls to unsuspecting users.