Skip to content

Search

"Banking Security"

272 articles found

Diagram of internet banking security showing a login screen protected by a padlock

HSM & Security

What Should Be Done to Ensure Internet Banking Security?

In the past, banking meant going to a branch. Today, most transactions run through channels such as the Internet Branch, ATM and Mobile Branch, so improving internet banking security and regularly informing customers about it is important.

Architecture diagram of the Visa EAS Server within the Visa Secure 3-D Secure authentication flow

EMV

What Is the Visa EAS Server?

The Visa EAS Server (Extended Access Service) is a server used in Visa’s authentication infrastructure. It was developed to run the cardholder authentication process securely between banks and the Visa network, particularly within Visa Secure (3-D Secure 2.x).

Diagram illustrating the role of a Secure Element Issuer in mobile payments

HSM & Security

What is a Secure Element Issuer?

Secure Element Issuer is the stakeholder that provides, maintains, and updates the secure element in cases where mobile payment application and card data are stored in the secure element inside a mobile phone.

Diagram illustrating the Access Control Server (ACS) role in the 3-D Secure authentication protocol

Security

How can I find the list of Access Security Control (ACS) companies?

Access Security Control (ACS) is the security protocol that the card-issuing bank must maintain under the 3-D Secure protocol to support cardholder authentication. 3-D Secure is an XML-based protocol that adds an extra security layer to online card payments.

Diagram showing the role of the Access Control Server (ACS) in the 3-D Secure authentication flow

Security

What is Access Security Control (ACS)?

Access Security Control (ACS) is the security protocol that the card-issuing bank must maintain in 3-D Secure to support cardholder authentication, functioning as a complete authentication solution for issuers and payment processors.

Payment systems in Türkiye overview

Payment Systems

What Are the Payment Systems in Türkiye?

When we hear “payment systems”, card transactions at POS terminals or ATMs usually come to mind. Let's look together at the payment systems recognized by the Central Bank.

Illustration of a phone scam call impersonating a bank

Security

We're Calling From the Bank, Your Account Has Been Compromised...

Fraud cases where scammers pose as bank staff or other institution employees to obtain citizens' banking information have increased significantly recently. Interestingly, the new fraud trend closely mirrors the steps of a genuine banking procedure.

Virtual POS payment system diagram for online card transactions

Merchant & POS

What Is Virtual POS?

Virtual POS is the software-based, security-enhanced equivalent of the physical POS devices used for card payments at merchants, designed for online shopping. It is not issued to individual customers, only to sole proprietorships, companies, or foundations and associations.

Diagram illustrating account-to-account (A2A) payment flow between banks

Online & Authorization

What are A2A (Account-to-Account) Payments?

Account-to-account (A2A) payments can be described as making a payment by transferring money from one bank account to another. Though similar to wire transfer/EFT, combining the transfer with the payment creates a seamless experience.

Virtual POS (VPOS) online payment interface screenshot

Merchant & POS

What is VPOS (Virtual POS)?

VPOS (Virtual POS) is the software-based, security-enhanced equivalent of the physical POS devices used for card payments at merchants, used for purchases made over the internet. It is also known as Virtual POS. VPOS is not issued to individual customers.