Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Learn about security vulnerabilities in mobile point-of-sale (MPOS) devices through a DEF CON 31 conference presentation that explores how virtual wallet solutions, popular in developing economies, can be exploited for malicious purposes. Discover real-world examples of financial fraud, including credit card skimming techniques, Bluetooth communication interference, and hardware manipulation methods targeting these affordable payment systems. Examine how seemingly convenient and accessible payment solutions designed for transactions, payments, and fund transfers can be compromised, highlighting critical security concerns in modern financial technology infrastructure.