Unlike NFC (Near Field Communication), MST does not require the merchant to have a contactless reader. It works on .
1. Introduction: What is MST and Why Test It? Magnetic Secure Transmission (MST) is a proprietary technology developed by Samsung. It mimics the magnetic stripe of a traditional credit card. When a Samsung device equipped with MST is placed near a traditional card reader’s magnetic stripe slot, the device generates a fluctuating magnetic field that the reader interprets as a card swipe. mst test samsung