Info Security

Running Head: INFO SECURITY
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IT Write Up
Information Security
(Student details :)
4/1/2019

Info Security
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Contents
IT Write Up: Information Security............................................................................................2
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Info Security
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IT Write Up: Information Security
Solution: 1
ATM’s system has to keep personal identification numbers (PINs) confidential, for
both the host system as well as during on-going transmission for any money
withdrawn transaction. In addition, such system should protect the integrity of an account
records along with of individual transactions. Apart from this, host system availability is
important for the economic well-being of the banks and financial institutions however the
availability of personal teller machines is of comparatively less concern in the context of
ATM systems (Yeh & Chang, 2007).
While considering an ATM system where users uses a PIN as well as a debit card to
access their bank accounts, examples of availability, confidentiality and integrity
requirements related with the ATM system are as follows:
 Integrity requirements: the most important integrity requirement is that the major
actions performed through an ATM must always be linked to an account related with
the customer’s bank card (Stallings, Brown, Bauer, & Bhattacharjee, 2012).
 Confidentiality requirements: within ATM systems, the communication network amid
the bank and the ATM must always be encrypted in a way that customer’s personal
data can be kept confidential efficiently. In addition, as we know that PINs are the
unique numbers which are utilised for withdrawing money from the ATM systems,
hence these PINs must always be encrypted whenever and wherever they are stored
(Peffers, Tuunanen, Rothenberger, & Chatterjee, 2009).
 Availability requirements: in this context, first important availability requirement is
that the ATM systems must always be capable to assist a minimum of X concurrent
customers at a specific time. Apart from this, ATM systems must always be
accessible around 99.9 per cent of the total time so that people do not suffer difficulty
while attempting to draw their money out from the banks (Vacca, 2012).