BinanceSubAccountUniversalTransfer

THE RISK

Critical Risk

This tool moves money/assets between accounts, fitting the Financial category definition ('moves money or commits financial obligations'). Severity is critical because an AI agent misusing this could transfer substantial funds from a master account to sub-accounts or vice versa without authorization, resulting in irreversible financial loss.

From the tool's definition Tool name 'BinanceSubAccountUniversalTransfer' explicitly performs transfers between master and sub-accounts.

Documented attack patterns abuse exactly the kind of access BinanceSubAccountUniversalTransfer gives an agent:

HOW TO CONTROL BINANCESUBACCOUNTUNIVERSALTRANSFER

PolicyLayer is an MCP gateway — it sits between your AI agents and BNB Chain MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for BinanceSubAccountUniversalTransfer:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "BinanceSubAccountUniversalTransfer": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

Any call to BinanceSubAccountUniversalTransfer is blocked until a human approves it. The rest of the server keeps working.

Create a free account and register BNB Chain MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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All 1240 BNB Chain MCP tools →

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Critical-risk tools in BNB Chain MCP → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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FAQ

What does the BinanceSubAccountUniversalTransfer tool do? +

Universal transfer between master account and sub-accounts, supporting various account types (spot, margin, futures, etc.). It is categorised as a Financial tool in the BNB Chain MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on BinanceSubAccountUniversalTransfer? +

Register the BNB Chain MCP server in PolicyLayer and add a rule for BinanceSubAccountUniversalTransfer: 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 BNB Chain MCP. Nothing to install.

What risk level is BinanceSubAccountUniversalTransfer? +

BinanceSubAccountUniversalTransfer is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit BinanceSubAccountUniversalTransfer? +

Yes. Add a rate_limit block to the BinanceSubAccountUniversalTransfer 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.

How do I block BinanceSubAccountUniversalTransfer completely? +

Set action: deny in the PolicyLayer policy for BinanceSubAccountUniversalTransfer. 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.

What MCP server provides BinanceSubAccountUniversalTransfer? +

BinanceSubAccountUniversalTransfer is provided by the BNB Chain MCP server (nirholas/bnbchain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every BNB Chain MCP tool call.

Deterministic rules across all 1240 BNB Chain MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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1240 BNB Chain MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

BinanceSubAccountUniversalTransfer

// WHAT BINANCESUBACCOUNTUNIVERSALTRANSFER ON BNB CHAIN MCP DOES

// THE RISK

// HOW TO CONTROL BINANCESUBACCOUNTUNIVERSALTRANSFER

// EXPLORE