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A banker Trojan is a piece of malware intended to get financial information or hack users through a banking or financial system, commonly through an online banking or brokerage interface.
Banker Trojans can work in different ways, for example, through seeding added code into bank web sites, or through intercepting passwords or information through the use of keyloggers. These types of malware have been analyzed by top security authorities, and banks and financial institutions are fighting back.
One way to limit the use and damage due to banker Trojans is to provide more secure authentication for online banking users. This is what is behind new multi-channel authentication where online banking programs may ask users to transfer data from a mobile phone, to further authenticate a transaction or user access. Security experts also provide parties with resources to remove existing banker Trojans.
Preventing harm from banker Trojans is a top priority in financial industries as they move toward new remote access and digital models. Experts express specific concern about online brokerage tools, because users can do so many different kinds of transactions through these portals.