Source Code Review.

We perform comprehensive manual and automated analysis of your source code to identify vulnerabilities, security flaws, and coding best practices violations. We review your code architecture, authentication mechanisms, data handling, and business logic to ensure your application is built on a solid security foundation.

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◇ Bitbone Scanner

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Line-by-line security analysis

Deep dive into your codebase to identify injection flaws, authentication bypasses, and insecure cryptographic implementations that automated tools might miss

OWASP Top 10 vulnerability detection

Systematic identification of the most critical web application security risks including SQL injection, XSS, broken authentication, and security misconfigurations

Detailed remediation guidance

Step-by-step instructions with code examples showing exactly how to fix identified vulnerabilities and implement secure coding practices (or we can fix them for you)

Custom security rule validation

Application of industry-specific and custom security requirements to ensure your code meets your unique compliance and security standards

Security-focused code quality assessment

Review of code architecture, design patterns, and development practices that impact long-term security maintainability

Dependency and third-party analysis

Comprehensive audit of external libraries, frameworks, and components to identify known vulnerabilities and supply chain security risks

Example

◇ Previous code

@app.post("/api/transfer")
async def transfer_funds(request: TransferRequest, db: Session = Depends(get_db)):
    sender = db.query(Account).filter(Account.id == request.sender_id).first()
    if sender.balance >= request.amount:
        sender.balance -= request.amount
        db.commit()
        
        receiver = db.query(Account).filter(Account.id == request.receiver_id).first()
        receiver.balance += request.amount
        db.commit()
        
        return {"status": "success", "new_balance": sender.balance}

        # Race condition vulnerability - TOCTOU attack
        # Non-atomic operations allow double spending

◇ Fixed code

@app.post("/api/transfer")
async def transfer_funds(request: TransferRequest, db: Session = Depends(get_db)):
    # Atomic transaction with proper locking
    with db.begin():
        # SELECT FOR UPDATE prevents race conditions
        sender = db.query(Account).filter(Account.id == request.sender_id).with_for_update().first()
        receiver = db.query(Account).filter(Account.id == request.receiver_id).with_for_update().first()
        
        if not sender or not receiver:
            raise HTTPException(status_code=404, detail="Account not found")
        
        if sender.balance < request.amount:
            raise HTTPException(status_code=400, detail="Insufficient funds")
        
        # Atomic balance updates within single transaction
        sender.balance -= request.amount
        receiver.balance += request.amount
        
        # All changes committed together or rolled back on failure
        return {"status": "success", "transaction_id": str(uuid.uuid4())}