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SB/SECURITYSmart-contract audits

We break protocols
before attackers do.

An independent smart-contract audit team, started by a top audit-contest winner. We read your code line by line, prove what's broken, and help you fix it — and we don't leave when the report is done.

Request an AuditSee our work
Trusted by
Starknet logoShiftYield logoCabal logoOrigami Finance logoAbstract logo
Lifetime2023 — Now
100+

Protocols served

1000+

Vulnerabilities found

TVL
$1.1B

Secured across DeFi

Next kickoff slot
< 24h
// Trusted by
010 / partners
Starknet logoShiftYield logoCabal logoOrigami Finance logoAbstract logoTitanX logoHKegaf 2 400x400 logoidWnnn7WP1 logos logo90111888 logoVSC8TU2j 400x400 logoStarknet logoShiftYield logoCabal logoOrigami Finance logoAbstract logoTitanX logoHKegaf 2 400x400 logoidWnnn7WP1 logos logo90111888 logoVSC8TU2j 400x400 logo
The audit process

From scope to long-term partner — three phases.

A linear, predictable process built by engineers who win competitions — not by salespeople optimizing for billable hours.

  1. 01
    Phase 01

    Pre-audit

    Scoping call, fixed-fee quote, and lock-in of a precise timeline. We don't hourly-bill, we don't pad — what we quote is what you pay.

    • Code walkthrough & threat model
    • Fixed-fee quote, no hourly billing
    • Kickoff date locked
  2. 02
    Phase 02

    Security Audit

    Manual line-by-line review with live bug reporting.

    • Manual review, every line
    • Architectural critique
    • Live findings, no waiting for a final PDF
    AI-Augmented + Formal Verification on every Solidity engagement
  3. 03
    Phase 03

    Post-audit support

    Free fix-review, public report, and an ongoing security partner you can ping when something feels off — even months later.

    • Free fix review
    • Public, citeable report
    • Long-term security partner
Why us

Senior review, clear reporting, real support.

Started by a top audit-contest winner. We dig deep, explain what matters, and stay with you long after the report is done.

< 24h
Fast start

From "yes" to work on your code.

80%
Clients return

80% of clients come back for another review.

10
Auditors

We work with 10 auditors and match the right people to your code.

AI
AI-assisted

AI helps us move faster; human auditors make the final call.

Our story

Built by a top security researcher.

SB Security started with Blckhv, a security researcher who loves breaking code before attackers do. He went to the top of public audit contests and beat well-known auditors as a newcomer.

He saw where traditional audit firms were falling short. Today, he leads an audit company known for trusted advice, personal attention, and unwavering support from start to finish.

Blckhv

Blckhv

Founder · Security Researcher

Top finisher in public audit contests. Now finds the bugs others miss.

Our work

Recent audits, all public.

View all audits
Shift Protocol
01

Shift Protocol — V2 Cairo

ERC4626, Asset Management

ChainEVM
Findings
2 MEDIUM3 LOW8 INFO
CompletedAPR 11, 2026
View
GoldMine
02

GoldMine

Mining token

ChainEVM
Findings
3 LOW3 INFO
CompletedAPR 02, 2026
View
Vernal
03

Vernal

Token backed by USDS

ChainEVM
Findings
1 CRITICAL4 MEDIUM3 LOW1 INFO
CompletedMAR 09, 2026
View
Cabal
04

Cabal — Strat Vault

LST Wrapper for Strat Protocol

ChainMove
Findings
1 LOW6 INFO
CompletedFEB 27, 2026
View
Showing 4 of 45+See all audits
Field reports

What our clients actually say.

“A lot of projects just want a rubber-stamped audit report and that's not what SBSecurity is all about. SB's background in audit competitions is evident in their speed, persistence, and attention to detail. The auditors have strong opinions on how code should be implemented and know what they are talking about.”
Lux
Founder · Origami Finance
@luxaverse
Verified client
Lux logo
Ozzy logo
“SB Security will ask a lot of questions to understand the contracts' intention and quickly point out flaws that don't look obvious at first.”
Ozzy
Founder · RootsFi
@MEADGod
Hyper0x0 logo
“Proactive, passionate, and precise — consistently supporting you before, during, and after the audit process.”
Hyper0x0
Founder · Shift Protocol
@hyper0x0
0xSigmoid logo
“Efficient, highly competent and friendly. Very smooth audit experience.”
0xSigmoid
Cabal
@0xSigmoid
Frequently asked

Got questions?

Quick answers on duration, pricing, chains, and what happens after the report ships. Still curious? Ping us on Telegram.

A typical engagement runs one to three weeks, depending on codebase size and complexity. We can usually kick off a new audit within 24 hours of agreed scope, and most DeFi protocols of 1,000–2,500 SLOC fit comfortably in a two-week window. We share an exact timeline during the pre-audit scoping call.
We audit everything. Solidity, Rust, Cairo, Move — across EVM (Ethereum, Arbitrum, Base, Optimism, Polygon, BNB Chain, Berachain, Hyperliquid) and non-EVM (Solana, Aptos, Sui, Stellar). We are an official auditing partner of Starknet (Cairo) and have secured one of the top protocols on Move. Whatever your stack, we have shipped a report on it.
Audit pricing is driven by code size, complexity, and the number of auditors required. We give a fixed quote after reviewing your repository — no hourly billing, no surprise overruns. Reach out via Telegram with your repo and target start date and we will return a quote within 24 hours.
You get a full PDF report with every finding categorized by severity (Critical / High / Medium / Low / Informational), a clear proof-of-concept where applicable, and concrete remediation guidance. Once fixes land, we run a free fix review and publish the final report to our public GitHub.
Yes. Every engagement includes a fix-review pass where we validate every patch against the original finding. Beyond that we offer an ongoing security partnership — pre-deployment checks for new features, mitigation reviews, and a direct line to the auditing team whenever your protocol changes.
Brief // openStep 01 / 01

Send your code. We'll tell you what's broken.

One fixed price in 24 hours — no hourly billing, no surprises. Before launch or after a hack, we look at it the same way.

Repo + scopeTarget start dateStack & chain
Request an AuditTelegram