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Monthly Archives: April 2006

Deciphering eBay feedback

“3. Note that we cannot remove feedback that is retaliatory, libelous, defamatory, untrue, unwarranted, or otherwise unfair unless we receive documentation for removal from a court of law. eBay provides the Feedback Forum as a place where users can express their opinions. Opinions cannot be censored and remarks will not be investigated for accuracy. Each […]

Is that really you?

It’s difficult to know who is who anymore. And I don’t mean the age old issue of changing personalities after major life events (marriage, breakup, big promotion). A recent talk by Christopher Abad at cansecwest/06 outlined this type of issue. How can we trust anything that is said online? How are we to know that […]

Interesting credit card test numbers

Test Credit Card Numbers: Visa: 4111-1111-1111-1111 MasterCard: 5431-1111-1111-1111 Amex: 341-1111-1111-1111 Discover: 6011-6011-6011-6611 Credit Card Prefix Numbers: Visa: 13 or 16 numbers starting with 4 MasterCard: 16 numbers starting with 5 Discover: 16 numbers starting with 6011 AMEX: 15 numbers starting with 34 or 37