Internal Security Review

Single-Owner Dependency

Both contracts use a single-owner model. While ownership has been transferred to a Safe multisig, it is currently configured as 1-of-1. A compromised signer key could execute all owner functions.

Mitigation: Upgrade Safe to 2-of-3 threshold. No contract changes required.

No Timelock on Critical Functions

Critical functions (pause, setTreasury) execute immediately upon owner approval with no delay period for community review.

Mitigation: Implement TimelockController as intermediate owner in Phase 5.

No Explicit Burn Mechanism

BCCSToken has no dedicated burn() function. Tokens can be burned by sending to the zero address, but no convenience function exists. This is by design for the fixed-supply model.

Unlimited Batch Whitelist Size

The batchWhitelist() function accepts an unbounded array. Extremely large batches could exceed block gas limits. Mitigated by owner-only access and natural gas limits.

Internal Review Scope

This review was conducted internally by KRYONIS Sovereign Systems Limited. While it follows professional methodology and covers standard vulnerability classes, it does not constitute an independent third-party audit. External audit recommended before governance decentralization.

Fixed Supply Integrity

No mint function exists post-deployment. Supply of 1,000,000,000 BCCS is permanently fixed. Confirmed by code inspection and BaseScan token tracker.

Soulbound Enforcement

All transfer vectors are blocked for non-mint/non-burn operations. EIP-5192 locked() returns true for all tokens. Covers transferFrom, safeTransferFrom, and approval-based transfers.

USDC Payment Security

Mint function protected by ReentrancyGuard. Follows checks-effects-interactions pattern. USDC on Base has no fee-on-transfer. All payments route directly to treasury.

Access Control

All privileged functions restricted to onlyOwner. Ownership transferred to Safe multisig. No backdoors, no hidden admin functions, no proxy upgradeability.

Tier Pricing Immutability

Tier prices and supply caps are set in the constructor and cannot be modified. No setter function exists for pricing. Purchasers have price certainty.