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FinGuard

Security Assessment Report

See how FinGuard finds, proves, and verifies bugs

A full 7-layer AI security assessment. Anonymized — project name and on-chain addresses redacted.

Audited contract

DeFiVault Staking (anonymized)

BSC · 0x7a…3F2c · Assessed 2026-07

Initial
C
After fix
A
1
Critical
2
High
3
Medium
4
Low

7-layer defense — layer-by-layer results

L1Static Code Audit2 integer-precision & access-control defects found
L2Property & Invariant Testing1 asset-conservation invariant broken
L3E2E / Pentest / Load / ConsistencyNo exploitable path across the call surface
L4Multi-AI Cross Audit4 AI brains agreed on 1 critical risk
L5AI Red-Blue TeamingExploited in sandbox — $1.42M drained (evidence below)
L65-Brain War RoomWar-room review: residual risk acceptable after fix
L77×24 Continuous MonitoringContinuous monitoring wired for post-launch alerts
L5 · Sandbox exploit evidenceCRITICAL

Oracle price manipulation → flash-loan drain of the pool

Not “we think this is risky” — the exploit was actually run against a mainnet fork in a hardened sandbox. The attack succeeded and funds were withdrawn.

Attack path

  1. Flash-borrow 50,000 BNB — no capital required
  2. Manipulate a single DEX spot price to inflate collateral value
  3. Over-borrow the pool's entire USDT against the inflated value
  4. Repay the flash loan, net profit $1,420,000
$ forge test --match exploit --fork bsc
[PASS] testExploit_OracleManipulation()
├─ flashLoan(50000 BNB) ✓
├─ manipulatePrice() price 312 → 1180 ✓
├─ borrowMax() drained 1,420,000 USDT ✓
└─ attacker profit: +1,420,000 USDT 💥 EXPLOIT CONFIRMED

Root cause

Collateral is valued from a single DEX spot price, with no time-weighting (TWAP) or multi-source oracle aggregation.

Re-test after fix

After switching to Chainlink + TWAP dual-source aggregation, the same exploit script was re-run: attack failed, zero funds lost.

FinGuard-exclusive engine

AI-Guided Monte Carlo Attack

The AI plans a high-value attack search space, then Monte Carlo sampling fires millions of randomized exploit inputs into a hardened sandbox — coverage-tracked and feedback-learned each round, hunting the edge cases hand-written tests never reach.

1,284,000
Randomized attack samples
94.7%
Branch coverage
6
Edge cases reached
1
Critical bug surfaced

L4 · Multi-AI cross-review verdict

Security brainFlagged oracle manipulation as critical
Finance brainConfirmed asset-conservation invariant broken
Performance brainNo new gas / DoS risk found
Attacker brainReproduced a profitable attack path
Arbiter ruling: 4 independent AIs agreed — not a false positive, judged a must-fix critical vulnerability.

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