Smartphones have become a mine of personal information, holding bank data, credit card information and addresses, making them the preferred target for cybercriminals, experts warn. “Cybercriminals go where there is value, and they have understood that the smartphone has become the preferred terminal for online shopping and payment,” said Tanguy de Coatpont, head of the French branch of international anti-virus firm Kaspersky Lab at the Mobile World Congress in Barcelona.