­Stories from the SOC: Quishing – Combatting embedded malicious QR codes

James Rodriguez – Senior Specialist, Cybersecurity

Executive summary

­­Over the past several months, AT&T Managed Detection and Response (MTDR) security operations center (SOC) analysts have seen an increase in the usage of phishing emails containing malicious QR codes. In a recent example, a customer that was victimized by a phishing attempt provided the AT&T analysts with an email that was circulated to several of its internal users. The analysts reviewed the email and its included attachment, a PDF containing a …

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