Shieldify Security

Shieldify Security is a Web3 and Web2 security company headquartered in Sofia, Bulgaria, founded in 2023. Positioning itself as the first hybrid security company in the space, Shieldify offers both smart contract auditing and broader Web2 security services, operating under a disruptive subscription-based auditing model and a rigorous 6-layered security approach. With over 150 security reviews completed, 450,000+ lines of code reviewed, and 1,000+ vulnerabilities detected, Shieldify has quickly established itself as a trusted security partner for blockchain protocols and Web3 projects globally.

Core Services

Shieldify's primary offering is smart contract security auditing delivered through two engagement models. The Single Security Review provides a fully-fledged audit of an entire codebase, conducted by a team of experienced security researchers who each produce individual reports consolidated into one final deliverable. This includes review of deploy scripts and fix implementations (Migration Review). The Subscription-Based Model is Shieldify's flagship innovation — a unique plan that entitles clients to unlimited audits regardless of the size or number of smart contracts within the subscription duration. It includes all features of the single review, a hibernate option, and fuzzing and formal verification as add-ons.

Beyond smart contracts, Shieldify's Web2 Audit service covers front-end review (code analysis, client-side threat modeling for XSS/CSRF/clickjacking, performance benchmarking), back-end review (architecture risk assessment, SDK and CI/CD test validation, data protection controls, authentication and session security, infrastructure and deployment security), and penetration testing (hybrid automated fuzzing plus manual exploitation, attack simulation, and proof-of-concept exploits).

Shieldify also offers Smart Contract Development services in Solidity, Rust, Go, Vyper, and Cairo, along with comprehensive unit, integration, and end-to-end testing. Development capabilities extend to API development (REST with Node.js, Deno, Java), front-end development (Next.js, React.js, Angular), and UI/UX design (fully responsive Figma designs for desktop and mobile).

Additionally, Shieldify provides Fuzz Testing & Invariant Testing and Formal Verification as specialized security assurance services, ensuring protocol correctness beyond standard code review.

Key Strengths

• Unique subscription-based auditing model enabling unlimited reviews within a subscription period
• 6-layered security approach combining multiple researcher perspectives into one consolidated final report
• Fluency in multiple smart contract languages: Solidity, Rust, Go, Vyper, Cairo
• Covers both Web3 (smart contracts, DeFi protocols) and Web2 (front-end, back-end, penetration testing) security
• Advanced techniques including formal verification, fuzz testing, and invariant testing
• Private bug bounty pools as an additional security layer

Notable Clients

Shieldify has audited protocols for prominent Web3 projects including Lido, Etherspot, Ambire, Dinero, IPOR, Zaros Finance, Possum Labs, Geode Finance, Futaba, and many others. The company maintains a public audits portfolio on GitHub for full transparency.

Why Choose Shieldify

Shieldify differentiates itself through its subscription model that enables long-term security partnerships rather than one-off engagements. Its hybrid coverage of both Web3 smart contract security and Web2 infrastructure security makes it a comprehensive security partner. The company's public audits portfolio, multi-researcher review process, and transparent reporting approach build client confidence in the quality and thoroughness of each review.