不知是真是假----被人挟持时可倒转提款机密码输入

超级马力

>
> 如果你被匪徒挟持要求输入提款机密码,你可以用倒转输入密码的方式去间接知会警方
>
> 例如你的密码是1234的话,你可以输入4321,提款机会识别到你是以倒转方式输入密码,
> 提款机会按你要求照出金额,但是会在匪徒不知情的情况下知会警方, 这数据最近在电
> 视上公开，但是不常用因多数人并不知此方式存在 ,请尽可能转给每一个人,谢谢你的
> 帮忙!

春光明媚

http://hk.knowledge.yahoo.com/question/?qid=7006121901563

Commentary:

This email forward claims that if criminals forced you to withdraw money fro
m an ATM, entering your PIN in reverse will automatically alert police.

The technology that makes this possible does exist. However, so far, banks h
ave not implemented it. Thus, if you are forced to withdraw money against yo
ur will, the chance that the ATM will have the reverse pin technology instal
led is exceptionally slim.

Back in 1994, Joseph Zingher from Chicago began developing ATM software that
 would silently call police if a PIN was entered in reverse. Since then, Zin
gher has spent years trying to sell the idea to banks in the United States w
ithout success. Several US states have explored the idea, but it is yet to b
e implemented. In 2004, the US state of Illinois passed legislation requesti
ng that banks install reverse-pin safety technology in their ATMs. However,
banks were not legally required to do so, and have so far displayed little i
nterest in using the system.

Zingher and others continue to push for the implementation of reverse pin or
 similar consumer safety systems at ATMs. The concept is sound, and such tec
hnology could certainly increase ATM security, discourage forced withdrawal
crime and possibly even save lives, if it was widely used. In an increasingl
y security conscious consumer market, it may not be too long before banks de
cide that such technology is financially viable or legislation forces them t
o act.

Until then however, forwarding this message is ill advised. Since it is extr
emely unlikely to work, the "advice&;quot; in this message could actually be
 dangerous. Forcing a victim to withdraw money from an ATM is a high-risk, v
iolent crime. If a victim enters a reverse pin at an ATM that does not have
the safety pin system installed, he or she will receive an error message and
 no money will be dispensed. This delay could antagonize the criminal and in
crease the risk of violent retaliation.

Moreover, if banks were to install a safety PIN system, they would provide i
nformation to their customers explaining the new system and how to use it. T
he message claims that the system is seldom used because "people don't know
it exists". However, it is absurd to suggest that a bank would go to the con
siderable expense of implementing a safety PIN system and then not bother to
 tell their customers about it.

The message mentions a "broadcast" as the source of the information
. This may refer to a September 2006 WOAI San Antonio News story on the subj
ect. The video cites the case of a San Antonio man who was forced to withdra
w money from several ATMs and explains the concept of reverse-pin technology
 as a means of countering such crimes. However, the story very clearly state
s that such technology is not yet being used.

Thus, this message contains dangerous misinformation and it should not be fo
rwarded. If and when banks begin to install reverse pin technology at ATMs i
t is sure to be well publicized. If your own bank begins using such a system
, it will almost certainly let you know about it directly.


错了，单向加密，比如你输入1234，系统会用hash算法把你的密码转为密文存储；

取款的时候，你输入1234，系统同样把该算法对你的1234进行加密，然后和数据库里比较

实际上整个过程只有加密，没有解密

总结 倒转密码报警是假的

d2tsf1d

你牛！