Blockchain security
04 · CHAIN◆L1 · L2 · BRIDGE · ORACLE

Blockchain security audits
& testing.

CredShields has extensive experience researching the security of public blockchains such as Bitcoin, Ethereum, Cosmos, and others - with deep expertise across P2P communication, node security, RPC calls, cryptography, consensus mechanisms, and asset transactions.

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CHAIN
READY
DOSSIER · L1/L2 ENGAGEMENTThis quarter
A senior-led blockchain audit, scoped today, delivered in weeks.
From consensus to bridges - every layer reviewed by researchers who have shipped CVEs against real chains.
Coverage Node · P2P · VM · bridge Chains Bitcoin · Ethereum · Cosmos Outputs Findings · PoC · attestation Retests Free · 90 days
Pre-launch slots openClaim slot →
01 · Why it matters
Stakes are catastrophic.

With threats evolving faster than ever, the cost of weak security can be catastrophic. Strong protection ensures trust, stability, and long-term sustainability for users and businesses.

$3B+ lost in blockchain exploits in 2023.
Massive financial losses continue to plague the blockchain ecosystem due to unchecked security vulnerabilities at every layer of the stack.
One compromised wallet or bridge breaks the ecosystem.
Interconnected blockchain systems mean a single vulnerability can cascade across protocols, chains, and downstream integrators.
Exchanges and protocols must meet compliance for listings.
Regulatory and exchange requirements demand comprehensive security audits and signed attestation for every blockchain project.
02 · How it works
Six steps, threat model to certification.

A step-by-step process built to deliver thorough assessments, detailed reviews, and validated results tailored to your security needs.

01
Threat modeling
Comprehensive analysis of every blockchain component, surfaces, and potential attack vector across the stack.
Week 1 · Senior-led
02
Smart contract audits
Detailed code review of ERC-standard and custom token contracts, including invariants and access control.
Weeks 1–2 · Manual + AI
03
Wallet & bridge
Testing wallet integrations and cross-chain bridge protocols for replay, double-spend, and validator-set attacks.
Week 2 · Cross-chain
04
Governance & DAO
Analysis of governance mechanisms, proposal flows, and DAO structures for capture and griefing risks.
Week 2 · Logic review
05
Economic simulations
Testing for flash-loan attacks, oracle manipulation, MEV pathways, and other economic exploit classes.
Week 3 · Game theory
06
Audit & certification
Comprehensive report with findings, remediation guidance, and signed security certification ready for listings.
Week 4 · Plus 90d retests
03 · Audit checklist
Eight categories, nothing skipped.

Identify and mitigate common vulnerabilities, security risks, and coding flaws in smart contracts and underlying blockchain infrastructure before deployment.

↗
I · 01
Node security
Data and state storage, blockchain database security, database state integrity check.
↗
I · 02
Node operation
Default configuration security and optimization, node upgrade and rollback mechanism review.
↗
I · 03
Node communication
External RPC implementation logic, P2P protocol security, eclipse and fingerprint attack protection.
↗
I · 04
Consensus
Consensus algorithm scalability, implementation logic, and security properties under adversarial conditions.
↗
I · 05
Transaction model
Transaction privacy, fee mechanism security, and protection against congestion and griefing attacks.
↗
I · 06
Virtual machine
VM implementation logic, sandbox escape, stack and heap overflow, and contract privilege control.
↗
I · 07
Account model
Status storage algorithm adjustability and security, with double-spending protection across the ledger.
↗
I · 08
Incentive model
Mining algorithm security, ASIC resistance, and tokenization reward mechanism review.
04 · Field report
Cross-chain DeFi, $1B+ TVL protected pre-launch.
A cross-chain DeFi project with $1B+ in liquidity relied on CredShields for blockchain security. We discovered flaws in bridge logic that could have led to double-spending, patched pre-launch, preventing catastrophic loss.
$1B+
TVL protected
01
Critical bridge flaw
CASE
CLOSED
CASE FILE · 07/2024CLOSED
Bridge double-spend chain in cross-chain DeFi patched before launch.
Findings 1 critical · bridge logic Compliance Pre-listing audit Engagement 4-week review Surface Bridge · validator · VM Outcome Catastrophic loss prevented
05 · Explore related
Adjacent practices.

Security services designed to strengthen every layer of your ecosystem.

PROTOCOL
Smart contract audits
  • Catch vulnerabilities before mainnet
  • ERC standards · custom tokens
  • Manual review + AI pattern matching
  • Reproducible PoC for every finding
Explore smart contract audits → INFRASTRUCTURE
DApp & protocol security
  • Full-stack protocol logic review
  • Front-end · contract · oracle integrations
  • Economic attack modeling
  • End-to-end exploit chaining
Explore DApp & protocol security →
Start here

Ready to test what's
actually exploitable?

Scope in hours. Report in days. No hidden fees, no drawn-out contracts, no vague promises - just a named pentester, a signed report, and a delivery date we commit to.

Secure your blockchain today

Ready to Secure
Your Blockchain?

Don't let security vulnerabilities threaten your blockchain infrastructure. Get a comprehensive audit from the team trusted by leading blockchain projects.

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Fast Turnaround
Get your audit results within 1 week*
Proven Track Record
200+ successful audits completed
Expert Support
Direct access to our security team