John Z Black

CAPTCHAs Are Dead. AI Killed Them. Now What?

John Z Black Mar 29, 2026

AI Security #captcha #ai #bot-detection #automation #recaptcha #behavioral-biometrics #fraud #captcha-solving

AI now solves every major CAPTCHA type faster and more reliably than humans, commercial solving services sell API access for fractions of a cent, and the two-decade era of 'click the fire hydrant' is over.

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Your AI Automation Platform Is a Backdoor: n8n RCE and a 4-Minute AI Browser Phishing Attack

John Z Black Mar 12, 2026

Vulnerabilities #n8n #ai-security #automation #prompt-injection #cve-2025-68613 #cisa #agentic-ai #perplexity

CISA flagged an actively-exploited RCE in n8n with 24,700 exposed instances. Researchers turned Perplexity's AI browser into a phishing tool in under four minutes. When software acts for you, it can be turned against you.

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