//Function FBTC
C-

Function FBTC

Risk Score 54/100·C-Value
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$542MTVL·$809MFDV·BridgeWebsite →

Function FBTC earns a C- for its innovative but still-permissioned TSS custody model, meaningful admin centralization risks flagged by security tools, and extreme supply concentration. The $789M TVL with near-zero daily volume creates an acute illiquidity paradox. Suitable for large institutions only; retail users should avoid direct FBTC exposure until admin key risks are mitigated by timelocks and broader Security Council membership.

Risk Breakdown

Top Risks

1

Centralized admin keys allow contract owner to pause mints/burns, modify fees, and mint tokens arbitrarily — GoPlus flagged these as material risks

2

Custodial BTC held by Cobo/Antalpha/Mantle TSS nodes: if the 3-of-3 Security Council is compromised or colluded, the entire $789M in BTC backing could be at risk

3

Extreme whale concentration: only ~11,000 FBTC tokens in circulation with near-zero daily trading volume, creating acute illiquidity and price manipulation risk

Frequently Asked Questions

Is Function FBTC safe to use?
Function FBTC receives a C- risk grade (54/100) from Hindenrank, where lower scores indicate lower risk. Function FBTC earns a C- for its innovative but still-permissioned TSS custody model, meaningful admin centralization risks flagged by security tools, and extreme supply concentration. The $789M TVL with near-zero daily volume creates an acute illiquidity paradox. Suitable for large institutions only; retail users should avoid direct FBTC exposure until admin key risks are mitigated by timelocks and broader Security Council membership. Function FBTC is an omnichain wrapped Bitcoin token backed 1:1 by real BTC held in custody by a Security Council of three institutions (Antalpha, Cobo, and Mantle). It lets Bitcoin holders earn yield across 30+ DeFi applications on 12+ blockchains without selling their BTC. Minting requires institutional KYB verification — ordinary users buy FBTC on secondary markets or access it through approved vaults. While the multi-party custody model is more robust than single-custodian alternatives like wBTC, it still carries meaningful centralization risks: a small group of admin keyholders can pause the entire system, and the contract creator retains minting and fee-change authority.
What are the main risks of using Function FBTC?
The key risks identified for Function FBTC are: (1) Admin pause risk: protocol owner can freeze all minting, burning, and cross-chain transfers, potentially trapping your BTC exposure indefinitely (2) Custodial risk: your BTC is held by a 3-party TSS council — if any two are compromised or coerced, reserves could be drained (3) Extreme illiquidity: with only ~11,000 FBTC tokens in circulation and near-zero daily trading volume, selling FBTC in secondary markets at fair value may be very difficult
What is Function FBTC's risk score breakdown?
Function FBTC scores 54/100 across eight risk dimensions: Mechanism Novelty: 7/15, Interaction Severity: 14/20, Oracle Surface: 5/10, Documentation Gaps: 3/10, Track Record: 4/15, Scale Exposure: 7/10, Regulatory Risk: 6/10, Vitality Risk: 8/10. The highest risk area is Vitality Risk at 8/10.
How does Function FBTC compare to other Bridge protocols?
Among 28 rated Bridge protocols on Hindenrank, Function FBTC ranks #24 by safety (lowest risk score = safest). Its 54/100 risk score and C- grade place it among the riskier Bridge protocols.
Has Function FBTC ever been hacked or exploited?
Function FBTC scores 4/15 on the Track Record risk dimension, indicating some history of security incidents or exploits. Higher scores reflect more severe or frequent incidents. Review the full risk report for details.
Last scanned 2026-05-29

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