# JAva applet and internal data security

Wen Yong (wyong@users.anet-stl.com)
Tue, 24 Feb 1998 09:03:36 -0600 (CST)

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    Date: Tue, 24 Feb 1998 09:03:36 -0600 (CST)

    From: Wen Yong <wyong@users.anet-stl.com>

    To: java-security@web2.javasoft.com

    Subject: JAva applet and internal data security

Dear sirs,
HI, I have an applet which will ask users to input the data and
then calculating result and finally generating a spreadsheet. Also users
send data in spreadsheet and then generate information in applet. My
question is can somebody be able to reverse engineer the spreadsheet data
that is already generated? Will the internal data safe? And, I know there
are a lot of Java decompiler today that will read the source code of the
class file, can they ( the decompilers) be able to do modification?

Yong

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