The Rising Threat of Vishing and SSO Exploitation in SaaS Extortion: Q&A with Experts
Two cybercrime groups, Cordial Spider and Snarky Spider, use vishing and SSO abuse for rapid SaaS extortion, leaving minimal traces.

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.
