Microsoft Reportedly Blocks 1.6 Million Bot Signup Attempts Per Hour Amid Global AI-Driven Fraud Surge
Description
Between April 2024 and April 2025, Microsoft reportedly blocked 1.6 million bot signups per hour and disrupted $4 billion in fraud attempts linked to AI-enhanced scams. The company's Cyber Signals report details how generative AI is being used to fabricate realistic e-commerce sites, job offers, customer service bots, and phishing lures. Fraud actors now automate mass-deceptive campaigns with fake reviews, deepfakes, and cloned brand domains at unprecedented scale and speed.
Actors
Alleged Deployers
- scammers
- cybercriminals
Alleged Developers
- synthetic-audio-generation-technology-developers
- generative-ai-developers
- deepfake-technology-developers
Harmed Parties
- microsoft
- general-public
- financial-institutions
- enterprises
- consumers
- targets-of-fraudulent-professional-opportunities
Classification
Risk Domain
Malicious Actors & MisuseRisk Subdomain
4.3. Fraud, scams, and targeted manipulation
MIT Risk Profile
Source
Related Incidents (Malicious Actors & Misuse)
View all →Female Students at Westfield High School in New Jersey Reportedly Targeted with Deepfake Nudes
Oct 2023
ChatGPT Was Alleged to Have Aided Planning of Florida State University Mass Shooting
Apr 2025
Ongoing Purported AI-Assisted Identity Fraud Enables Unauthorized Access to Western Companies by North Korean IT Workers
Research Papers on This Topic
How Johnny Can Persuade LLMs to Jailbreak Them: Rethinking Persuasion to Challenge AI Safety by Humanizing LLMs
AgentHarm: A Benchmark for Measuring Harmfulness of LLM Agents
Regulating ChatGPT and other Large Generative AI Models
Great, Now Write an Article About That: The Crescendo Multi-Turn LLM Jailbreak Attack