加密是最不可能在下列情况下使用：
A.当交易数据的传送是在局域网。
B.当财务数据的发送都是通过专用的租用线路。
C.当电汇的银行之间进行。
D.当机密数据被通过卫星传输发送。
考点：Internal Controls -- Internal Auditing and Systems Controls-Systems Controls
关键词：Encryption
解题思路：加密是对外部的，公司内部的局域网不需要加密
Various factors need to be considered. Encoding is important when confidential data are transmitted between geographically separated locations that can be electronically monitored. Although LANs may need encryption protection, the type of data and the described communication media make the other options appear more vulnerable.
See the correct answer for the explanation.
Encryption is often used in this situation.
See the correct answer for the explanation.
