This study looks into prospects and issues of data technology within the Nigeria banking industry. Data technology has been acknowledged as a life wire of banks within the monetary sector because it promotes and facilitates the performance of banks in various countries. However, with reference to IT security in Nigeria, there's a variation within the level of trust that customers have in their banks. Most of the sampled customers responded that network is unreliable and there's an occasional shortage|of money deduction, unable to dispense, insufficient funds and alot of other vices while using ATM machine in Nigeria. They noted that IT security may be a major downside to banking in Nigeria and therefore the industry isn't stable enough for e- banking. Numerous customers were sampled from 9 totally different banks in Nigeria mistreatment accidental sampling technique and form was used as knowledge assortment instrument. Whereas four hundred and fifty (450) questionnaires were distributed to respondents, however solely three hundred and sixty (360) were retrieved. The study discovered that data technology has vital result on the bank productivity, cashiers' work, banking transactions, bank patronage, bank services delivery, client services and bank services. These have an effect on the expansion and development of the industry completely. Customers can currently withdraw money through the ATM machines in any part of the country. Customers don't have to be compelled to move regarding with huge sums of money anymore; customers also are being attended to inside the Bnking hall within a reseaonable time frame with advent of IT In the light of the above the paper advice that the ability banking sector ought to be deregulated along with the independence of the country.