This document summarizes a research paper that analyzes the types and security of two-dimensional barcodes, specifically QR codes, in logistics and e-commerce. It begins by introducing QR codes and their increasing usage in these industries. It then discusses the different types of 2D barcodes, including QR, Aztec, MaxiCode, PDF417, and Semacode. It analyzes the usability, attacks on QR code security like phishing and malware propagation, and proposed methods to enhance QR code security including digital signatures and dynamic QR codes. The document concludes that as QR code usage grows in important industries like payments, their security must be improved to prevent attacks and data leaks.