NFC card with credit copy-able to phone?

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As title suggests

Would it be possible? Or would it depends on the secruity/encryption of the original tag?

Here in Hong Kong there is a thing called an "octopus card" which contains credit that can be recharged from convenience stores, tube stations etc. Would it be possible to copy/transfer the data from that card to my phone so I can just use my phone?

Originally Posted by droid_does

As title suggests

Would it be possible? Or would it depends on the secruity/encryption of the original tag?

Here in Hong Kong there is a thing called an "octopus card" which contains credit that can be recharged from convenience stores, tube stations etc. Would it be possible to copy/transfer the data from that card to my phone so I can just use my phone?

No, these cards are specifically designed with security to prevent such a thing.

The closest thing is if the provider of the card puts hooks into their financial to permit using NFC card emulation with their services, such as how Citi partnered with Google to allow PayPass accounts to be used with Google Wallet.

Every time you use your credit card, it reads/generates/writes a new code, so its never the same.

Sent from my Rogers SGH-I727R using my XDA Premium app

Try "八達通餘額閱讀器", search that on Google Play, that app should able to read the balance of your card.

AFAIK, octopus card has some kind of security lock and you are unable to modify the data inside, but you can read some of the data(like balance, card serial no., etc).