The Rising Threat of Vishing and SSO Exploitation in SaaS Extortion: Q&A with Experts

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In the rapidly evolving landscape of cybersecurity, two distinct cybercrime groups have emerged as a formidable threat, targeting Software-as-a-Service (SaaS) environments with alarming speed and precision. Known as Cordial Spider (also tracked as BlackFile, CL-CRI-1116, O-UNC-045, and UNC6671) and Snarky Spider (alias O-UNC-025 and UNC6661), these clusters are notorious for executing rapid, high-impact extortion attacks using a combination of vishing (voice phishing) and Single Sign-On (SSO) abuse. Their operations leave minimal forensic traces, making detection and response exceptionally challenging. This Q&A explores the tactics, risks, and defenses against these advanced threats.