cracking mobile commerce

Cracking Mobile CommerceJustin Woo

[Developer Advocate]Venmo + Braintree + PayPal

[email protected]@jzwoo

@jzwoo

mailto:[email protected]

Cracking Mobile Commerce

@jzwoo

@jzwoo

Justin Woo

[Developer Advocate]Payment Geek



@jzwoo | [email protected]

A Credit Card Form walks into a bar……


he says to the bartender,

“I’ve been having a hard time meeting people”

the bartender says:

“Wait, aren’t you supposed to be good at generating…”

“interest”

THANK YOU!




A series of Bad Jokes….By Justin Woo


@jzwoo

Things Justin Thinks merchants

should not* do when making him

buy more stuff

@jzwoo

Add a Captcha


Captcha

Completely Automated Public Turing Test To Tell Computers and Humans Apart

Ask users to register…

Ask users to register..

before purchasing

@jzwoo

Not allow me to store my

Credit Card info


@jzwoo

Forcing users to download Native

app

@jzwoo

@jzwoo

Not auto-detect UA string

@jzwoo

An American Express walks into a bar in Moscow……

the bartender says,

“Sorry mate,You aren’t allowed in here without a ….”

“Visa”


@jzwoo

Don’t Autodetect

Credit Card Type

@jzwoo

jquerycreditcardvalidator.com/


http://jquerycreditcardvalidator.com/





creditcardjs.com/





You lost me at the Card Security Number


http://jessepollak.github.io/card/


http://kenkeiter.com/skeuocard/


Not ValidatingCredit Card # field

Inline


Luhn algorithm

4217 6511 1111 1119


4217 6511 1111 1119

9111 1111 1165 7124


4217 6511 1111 1119

9111 1111 1165 7124

9212 1212 1260 7228


4217 6511 1111 1119

9111 1111 1165 7124

9212 1212 1260 7228

14 + 6 + 11 + 19 = 50


4217 6511 1111 1119

9111 1111 1165 7124

9212 1212 1260 7228

14 + 6 + 11 + 19 = 50

50 % 10 == 0?@jzwoo | [email protected]

Not limiting the number of digits

Card Number of Digits

AMEX 15

Visa 13 or 16

MasterCard 16

Discover 16

@jzwoo

@jzwoo

http://zdfs.github.io/toscani/paymentInfo/index.html

@jzwoo

@jzwoo

Not provide me a calendar view when

selecting dates

@jzwoo

@jzwoo

Long scrolling lists

@jzwoo

@jzwoo

Not show appropriate

keyboard layouts

@jzwoo

@jzwoo

http://mobileinputtypes.com/

@jzwoo

@jzwoo

Not disable auto-correct when appropriate

@jzwoo

@jzwoo

<input type="text" autocorrect="off" />

Make it difficult to enter Credit Card info

on a mobile device


Uber


@jzwoo

Creating Mobile Shopping experiences

@jzwoo

A Credit Card walks into a bar……

the bartender says,

“I haven’t seen you in a while”

The credit card looks at him and says:

“Yeah, I had to go to jail. I was”

“Charged with bad humour”


@jzwoo

Justin Woo

[Developer Advocate]Venmo + Braintree + PayPal


