To clarify my earlier post : Up until anbout 29 May, 1996, the Cybank site had a "test" file that was placed as a challenge. As there was a challenge, I took it. The following describes the data I was able to recover from the test file. I have received a number of files asking how I had hacked the Cybank server. I have acheived no such feat, merely determining the methodology used at the Cybank site. I communicated that fact to Cybank's operators, who subsequently seemto have altered their site, and download client. Taking this issue any further has no interest to me, and I am unable to post any VB source code - I "cleaned" some hard disk space, and have deleted the working files I used at the time. Silly me. Also, the Cybank site seems to have changed, so I don't know how you would get a test fle without becoming a Cybank user, which would probably mean passing your name, credit card etc to them. At the time, Cybank seemed very happy with actual user testing, however, I have had little further contact (1-2 emails). Lyal ps - i have also learned some interesting spelling methods as a result of informative emails. -- All mistakes in this message belong to me - you should not use them! ******************************************* included text from previous emails. ******************************************* On Wed, 29 May 1996 12:20:08 Cybank wrote:

...

Return-Path: lyalc@ozemail.com.au Date: Tue, 28 May 1996 23:55:21 -0700 From: Lyal Collins <lyalc@ozemail.com.au> To: info@oxford.com.au Subject: The text in the "securely encrypted" test message X-UIDL: 833321608.007

According to me, this decodes to : Text1!O1! 12!O2!I1!830304962394!I2!A1!0.10!A2!P1!!P2!C1!0.10!C2 Text1 = data to follow is text ? !O1! 12!O2 = I don't understand these bits yet !I1! = a common delimiter - 1 = start 830304962394 = serial number that this 10 cents is for/from !I2! = a common delimiter - 2 = end A1!0.10!A2! = ammount is 10 cents, $0.10 P1!!P2! = seems to be a token of some kind C1!0.10!C2 = a check value to ensure amount is correct.

well done Lyal! not bad so far but you've missed a few things :-) presume that you've used a VB3.0 decompiler to do it but we're upgrading to VB4.0 and changing the encryption process very soon :-) where are you? your prize might well be a job!!!!!! :-) plus the whole cash environment is becoming server-based within a couple of weeks. stay in touch, we need a beta-tester! Martin Haynes Oxford Media Group Pty Ltd CYBANK