Safe to write down — on paper — name on Credit Card, number, expiry date? Then mail this paper? [closed]

I screen shot page 3 of 6. Fool hardy to require these three details on a paper application? Reasonable to complain to Canadian gov’t for jeopardizing credit card details?

Mail can be "scanned and intercepted", "steamed o… Continue reading Safe to write down — on paper — name on Credit Card, number, expiry date? Then mail this paper? [closed]

Are there any risks sharing my phone’s SEID number with the bank of my credit card?

I was not able to add a credit card to Apple Pay on an iPhone. The bank told me that they need the SEID number of the phone to resolve the issue.
By a quick search on the Internet, I learned that the SEID number is an identifying number of… Continue reading Are there any risks sharing my phone’s SEID number with the bank of my credit card?

If you don’t need a PIN for your card in Apple Wallet and don’t need a PIN to use Apple Wallet, how is that safe?

I’ve just added a card to my Apple Wallet and noticed that I didn’t need a PIN. Now since Apple Wallet is apparently already "secure", I don’t need a PIN to use it either.
Is this a loophole or am I missing something?

Continue reading If you don’t need a PIN for your card in Apple Wallet and don’t need a PIN to use Apple Wallet, how is that safe?

How can a credit card processor tell I had a trial with a specific company before if every detail provided is different?

Consider the following scenario: I signed up for a free 7d trial of a $200/y "AI" subscription product (not OpenAi) — provided username and an e-mail address and was forwarded to a Stripe checkout page for card verification.
Whi… Continue reading How can a credit card processor tell I had a trial with a specific company before if every detail provided is different?

how should a web application verify a redirect comes from a trustworthy source?

This document has a sequence diagram (annotated and shown below) explaining how Stripe handle’s a Checkout Session.
My question : When a customer is returned to the successUrl = www.example.com/some/specific/path, how can www.example.com (… Continue reading how should a web application verify a redirect comes from a trustworthy source?

Online stores may not be as secure as you think

Credit card skimming is on the rise for the holiday shopping season, according to Malwarebytes. Online stores are not always as secure as you might think they are, and yet you need to hand over your valuable credit card information in order to buy anyt… Continue reading Online stores may not be as secure as you think