How ContractScan Tracks the Latest DeFi Hacks

The biggest problem with smart contract security tools is that they're frozen in time. Most scanners check your code against the ruleset that shipped with the tool. But DeFi hacks happen every week with new patterns.

ContractScan is different. Every week, we automatically collect new hack incidents and update our analysis database.

Automatic Threat Intelligence System

ContractScan's Risk Feed Collector pulls from these public sources:

1. Rekt.news RSS

The go-to media outlet for DeFi security incidents. Publishes technical analysis reports within days of each hack.

Collection frequency: Weekly
Data: Incident name, loss amount, vulnerability type, reference links

2. DeFiHackLabs (SunWeb3Sec)

An open-source GitHub project that maintains PoC (Proof of Concept) exploit code. Systematically archives DeFi hack incidents from 2020 to present.

Collection frequency: Weekly
Data: Incident name, date, loss amount, vulnerability classification, transaction hashes

3. SWC Registry

Smart Contract Weakness Classification — the standard taxonomy for smart contract vulnerabilities. New categories are automatically incorporated as they're added.

Current coverage: 37 SWC categories

Collection → Classification → Integration Pipeline

[Public Sources]  →  [Collector]  →  [Auto-Classification]  →  [Scan DB Update]
Rekt.news            Weekly          SWC mapping               defi_hacks DB
DeFiHackLabs         cron job        Keyword-based             Shown in scan reports
SWC Registry                         Categorization

Collected incidents are automatically classified by keyword:

Keyword	Classification	Example Incident
reentrancy, re-entrancy	SWC-107	Euler Finance ($197M)
access control, onlyowner	SWC-105	Poly Network ($611M)
flash loan, oracle	Oracle Manipulation	Mango Markets ($116M)
bridge, cross-chain	Bridge Exploit	Wormhole ($320M)
delegatecall	SWC-112	Parity Wallet ($150M)

Why This Matters

The Limitation of Static Rulesets

Traditional security tools only apply rules from their release date. If a new attack pattern is discovered in March 2026, that pattern goes undetected until the tool ships an update.

ContractScan's Approach

New incident occurs → Reported by public sources
Weekly collector runs → Automatically updates the DB
Applied from next scan → Enhanced detection of similar patterns
Real incident references in reports → "This code matches a pattern similar to incident X"

Users always receive scan results that reflect the latest threat intelligence.

Transparency

ContractScan doesn't hide what sources it uses for analysis.

All data sources are publicly available
Classification logic is transparent and documented in scan reports
Scan reports include referenced incidents and source links

This transparency is the foundation of trust. Not a black box — you can verify what evidence led to what conclusion.

Current Collection Status

Static DB: 15+ major incidents (The DAO, Cream Finance, Euler Finance, Ronin Bridge, etc.)
Dynamic collection: Automatic weekly updates
Total coverage: 37 SWC categories + DeFi-specific patterns (Oracle Manipulation, Bridge Exploit)

What's Next

SlowMist Hacked database integration
Automatic Semgrep rule generation pipeline for new incidents
Email alerts for subscribers when new vulnerabilities are detected

ContractScan isn't a "set it and forget it" tool. It's a living security tool. Every week it learns about new threats and applies them to your next scan.

Start scanning your smart contracts at ContractScan.

Important Notes

This post is for informational and educational purposes only. It does not constitute financial, legal, or investment advice. The security analysis provided is based on available data and automated tools, which may not capture all potential vulnerabilities. Always conduct a professional audit before deploying smart contracts.