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Protocols & Web3

Common Defense secures Web3 protocols against adversaries who are well-funded and one mistake away from the treasury. Drawing on red-team experience from the most adversarial environment in technology, we protect your protocol, your team, and your users.

$2.4B
in Web3 losses traced to communications-layer attacks, 2024 to 2026
$300B+
in digital assets protected by our team
$21M
drained from one protocol through a single phishing email

Common Defense grew up defending Web3, where attackers are patient, capital sits on-chain, and a single compromise is irreversible. That red-team intuition now protects protocols, their teams, and their treasuries.

The stakes are different on-chain

When your infrastructure guards a treasury, every gap is worth exploiting. There is no chargeback and no undo. Attackers are well-funded, patient, and willing to spend weeks on a single target. A compromise that would be a bad day for a SaaS company is final for a protocol.

How protocols actually get drained

The exploit is rarely the smart contract. It’s the operation around it. A signer gets reached through a fake job offer. A multisig quorum gets captured. A front end gets poisoned to trick an approval. We harden the identity, access, signing, and communication paths that lead to funds, and we respond when an incident is live.

Multisig and treasury operations

The treasury is the target, so the controls around it get the most scrutiny. We review your signer setup, quorum policy, and signing hygiene, along with the custody and movement controls between an attacker and the funds. When something does go wrong, on-chain incidents move fast and don’t reverse. We contain the exposure, trace the funds, and work exchanges and partners to freeze what is still reachable. On-chain, the response has to move in minutes, because the transfer won’t reverse. We help your team rehearse that day before it arrives, so no one is improvising when the treasury is exposed.

Common Defense helped protect us during a severe incident, diagnosed the root cause rapidly, and set up systems in place to prevent future attacks and reassure our stakeholders. — CEO, multi-billion protocol

How we help

Operational security for high-value targets

When your infrastructure guards billions, every gap is a target. We harden identity, access, and the paths that lead to funds.

Incident response under pressure

Fast containment and root-cause diagnosis when an active incident threatens the protocol and its users.

Assurance your community can trust

A security posture you can put in front of users, partners, and investors.

Multisig & treasury operations

We review signer setup, quorum policy, and signing hygiene, and the custody and movement controls that stand between an attacker and the treasury.

Close every gap before it becomes an incident.

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