A security review is only as good as the people behind it. Vari is founded and led by Varinder Singh, and the published reviews on this site are the credential.
Varinder SinghFounder & lead reviewerSeven-plus years in crypto, building novel products from scratch — blockchains, DeFi protocols and stablecoins, architected end-to-end. Across the contracts we've built, reviewed and managed, more than $1B has moved on-chain. Vari brings that same attacker's-eye view to your whole stack — reviewed by people who've shipped the systems that have to survive the attack.
The redacted reviews published on this site are our own engagements — full-stack reviews of live protocols across contracts, config, cross-chain, frontend/backend and DNS, with every finding ranked and a fix for each. See the reviews →
You work directly with the reviewers on your code — no account managers, no handoffs, no telephone game.
Every finding is ranked by whether it can actually be used against you, and ships with a concrete fix — not a list of lint.
Point-in-time review, residual risk stated plainly, and never a "certified secure" claim.
Contracts, config, cross-chain, frontend, backend and DNS — one review, ranked by exploitability, 1–3 days. From $2,500. Fixed quote within 24 hours, free.