Enable two-factor authentication with a secret and verification code
AI agents use set_2fa to create or update resources in cPanel MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your cPanel MCP Server environment.
This tool modifies account security settings by enabling 2FA, which is a reversible configuration change (2FA can be disabled). It does not execute arbitrary code, delete data, or move money. While security-sensitive, the primary action is setting/configuring a feature (Write category).
From the tool's definition Tool name 'set_2fa' with description 'Enable two-factor authentication with a secret and verification code' indicates modification of authentication settings. The action creates or enables a new security configuration (2FA) on an account.
Documented attack patterns abuse exactly the kind of access set_2fa gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and cPanel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for set_2fa:
{
"version": "1",
"default": "deny",
"tools": {
"set_2fa": {
"limits": [
{
"counter": "set_2fa_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}set_2fa stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Enable two-factor authentication with a secret and verification code. It is categorised as a Write tool in the cPanel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the cPanel MCP Server MCP server in PolicyLayer and add a rule for set_2fa: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches cPanel MCP Server. Nothing to install.
set_2fa is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_2fa rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for set_2fa. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
set_2fa is provided by the cPanel MCP Server MCP server (0xhayd3n/cpanel-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from cPanel MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
164 cPanel MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.