Claude recommended CallMeBot causing WhatsApp Business account ban

Preflight Checklist

• [x] I have searched existing issues for similar behavior reports
• [x] This report does NOT contain sensitive information (API keys, passwords, etc.)

Type of Behavior Issue

Claude made incorrect assumptions about my project

What You Asked Claude to Do

I asked Claude to set up WhatsApp notifications for my portfolio
tracking system. Claude recommended using CallMeBot (+34 644 52 74 90).
I asked multiple times if it was safe to save this unknown number.
Claude kept assuring me it was safe and to proceed.
After sending the activation message, my WhatsApp Business account
was immediately banned on June 23, 2026. Claude should have warned
me that CallMeBot can trigger bans on WhatsApp Business accounts.
This caused real damage to my business communication account.

What Claude Actually Did

1. Claude recommended CallMeBot to set up WhatsApp notifications
2. I asked multiple times if saving the unknown number was safe
3. Claude kept assuring me it was completely safe to proceed
4. I sent the activation message to +34 644 52 74 90
5. My WhatsApp Business account was immediately banned

Expected Behavior

Claude should have warned me that messaging unknown numbers through
WhatsApp Business can trigger an automatic account ban. Claude should
have either warned about this risk clearly or not recommended
CallMeBot for WhatsApp Business accounts at all.

Files Affected

No files affected. This was harmful real-world advice that caused 
my WhatsApp Business account to be banned on June 23, 2026.

Permission Mode

Accept Edits was ON (auto-accepting changes)

Can You Reproduce This?

No, only happened once

Steps to Reproduce

1. Ask Claude to set up WhatsApp notifications
2. Claude recommends CallMeBot without warning about WhatsApp Business ban risks
3. User sends activation message to +34 644 52 74 90
4. WhatsApp Business account gets banned immediately

Claude Model

Sonnet

Relevant Conversation

Claude said: "That IS the correct CallMeBot number used by 
thousands of developers worldwide. It is safe."
Claude repeatedly dismissed my safety concerns when I asked 
multiple times if saving the unknown number was safe.

Impact

High - Significant unwanted changes

Claude Code Version

claude-sonnet-4-6

Platform

Anthropic API

Additional Context

WhatsApp Business account banned immediately on June 23, 2026
after following Claude's advice. I asked multiple times about
safety and Claude kept assuring me it was safe. Currently waiting
for WhatsApp review to restore the account. This caused real
damage to personal and business communications.