On 15/5/23 18:17, David Batho wrote:
> So will my myki still work (even though I haven’t used it for about five years!)?

Myki cards have a 5 year age limit. The card will need to be replaced.

Not sure why they picked 5 years. Sydney and Brisbane picked 9 years for
the SAME type of cards. I think Opal have pushed them out to 15 now.

London didn't program in an age limit on Oyster and last visit to London
my wife was using a 20 year old Oyster card. I used my phone and paid by
'contactless'.

The memory chips in the cards 'wear out', but the wear is use related
not age - the card vendor guarantees 5 years of intensive use - and I
think that's where the Myki people got the 5 years from.

It also does allow them to make format changes to the files on the cards
and know that they only have to support the old format 5 years before
they can remove that support from the system. If the cards never age
out, you have to support the older formats forever - which could be a
problem if some one manages to crack the security system used and starts
large scale issuing of fake cards that the system accepts. (Some one did
completely reverse engineer Oyster - the old Myfare Classic cards were
not terribly secure to start with, but Oyster forgery never became a
problem - or at least not enough of a problem for them to admit a
problem and withdraw support for the original format cards).

>

> David

>

>

>> On 15 May 2023, at 4:16 pm, Mal Rowe mal.rowe@...> wrote:

>>

>> The Victorian Govt has announced the successful tender for the new ticketing system.

>>

>> It is US based Conduent Business Systems, taking over from NTT.

>>

>> https://www.abc.net.au/news/2023-05-15/credit-cards-fares-public-transport-myki-conduent/102347288

>>

>> The name myki is owned by the state and will continue to be used.

>>

>> Mal Rowe - who pays his fares

>>

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