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Customer collecting an online order at a store counter, illustrating buy online pickup in-store (BOPIS)

E-commerce

What Is BOPIS?

BOPIS, short for 'Buy online pickup in-store' and also known as click and collect, means buying online and picking up the order at a store. Learn how it works, who can offer it and which companies in Turkey already do.

Diagram illustrating a man-in-the-middle attack intercepting communication between a client and a server

Fraud

What is a Man-in-the-Middle Attack (MITM)?

A man-in-the-middle attack is a method in which an attacker inserts themselves between the server and client to intercept users' information, steal passwords, and gain access to accounts on a local network. This fraud mostly occurs over public internet connections.

Diagram showing the Issuer Domain, Interoperability Domain and Acquirer Domain in 3D Secure

Merchant & POS

What are Payment Scheme 3D Secure systems?

3D Secure is short for Three Domain Secure (Issuer Domain, the Interoperability Domain and the Acquirer Domain), used to increase security in online transactions. Known to cardholders as 3D Secure, these systems are given unique names by payment schemes (MasterCard, Visa, etc.).

Diagram of the chargeback process between cardholder, issuer and acquirer

Chargeback

How to Reduce Chargebacks (For Cardholders)

A chargeback is when a cardholder asks the issuing bank to refund a transaction made without their knowledge. It cannot be prevented entirely, but simple precautions can minimize the risk. Here is how the process works and what cardholders should do.

Illustration of a Card Not Present (CNP) online payment transaction

Credit Card

What Is a CNP (Card Not Present) Transaction?

CNP refers to a transaction made through a website or a company's own app payment page, where the card is not read by any device and its details are entered manually. It is short for Card Not Present.

Diagram illustrating the RSA encryption algorithm

HSM & Security

What is RSA (Rivest, Shamir, Adleman) Key?

RSA, first used by Rivest, Shamir and Adleman, is a security algorithm used in digital cryptography. RSA differs from older symmetric algorithms because it enables digital signing and advanced encryption for e-commerce systems and high-profile institutions.

Conceptual illustration of AI agents engaging in online commerce and payments

Agentic Commerce

Agentic Commerce Series – Part 1

The next customer on the internet may not be human. If AI agents become part of purchasing decisions, the rules of e-commerce, marketing, and payment systems could change.

Illustration of ChatGPT Instant Checkout and the Agentic Commerce Protocol

Online & Authorization

Shopping Directly from ChatGPT: A New Era with Agentic Commerce

OpenAI and Stripe announced the Agentic Commerce Protocol (ACP), with Instant Checkout live on Etsy and Shopify in the US. What this means for payment facilitators and e-commerce platforms, and what may come beyond one-click checkout.