Blockchain Node & Validator Infrastructure Security
Security review of the infrastructure your chain participation depends on — validator key isolation, RPC exposure, host hardening, monitoring and the availability engineering that keeps slashing and downtime off your balance sheet.
Verified Solvex Specialist
Verified by SolvexDirect specialist contact for Solvex engagements
What this means. An authorized Solvex administrator registered and approved this exact public identity. What it does not. Solvex has not inspected the account on the platform, and this is not the platform's own verification.
Solvex specialists never ask for your passwords, recovery phrases, one-time codes, or payments to a personal account. Work, scope and invoices are agreed in writing through the official channels on this site.
Signed authorization required. This engagement is performed only against systems you own or are contractually authorized to have tested, under an agreed scope. See the responsible testing policy.
What's covered
- Validator and node architecture, network segmentation and peering exposure
- RPC endpoint exposure, authentication and rate limiting
- Signing-key isolation, remote signer design and quorum where applicable
- Host and container hardening, patching and update process
- Monitoring, alerting and the metrics that predict a slashing event
- Backup, failover and disaster-recovery design
- DDoS resilience and availability engineering
- Access control, bastion design and operator authentication
What you receive
- Infrastructure security assessment with severity-ranked findings
- Network and trust-boundary diagram of the validator estate
- Key-isolation and signer architecture recommendations
- Monitoring and alerting gap analysis
- Availability and failover recommendations
- Prioritised remediation plan
Evidence and reporting
How the work is kept honest- Evidence, frozen at issuanceFindings tie to something observed. When the report is issued, the evidence behind it is frozen in the same transaction and cannot be edited afterwards.
- A signed reportAn Ed25519 signature covers both the report content and the delivered file. Alter a byte of either and verification fails.
- Signed scope firstTesting starts only after written scope and signed authorization for systems you own or are entitled to have tested.
Anyone holding a Solvex report can verify it publicly without seeing its contents.
Our boundaries
What this engagement does not do, stated before it starts.
- We never request or handle validator signing keys
- Consensus-protocol design review is outside scope unless agreed separately
- Slashing outcomes depend on network conditions we cannot control or guarantee
- Smart-contract code is a separate audit
How this engagement runs
- 01
Intake
Tell us the system, the goal and the constraints. If the work is not a good fit, we say so before anyone is invoiced.
- 02
Scope and authorization
Written scope and signed authorization before anything is touched. Security testing runs only against systems you own or are contractually entitled to have tested.
- 03
Investigation or build
Specialists matched to the work. Findings are proven by hand — scanner output is a lead, never a finding.
- 04
Evidence
Every finding ties to something observed. When a report is issued, its evidence is frozen in the same transaction, so what backed the report cannot change afterwards.
- 05
Delivery
A signed report: an Ed25519 signature over both the content and the file, with a short verification reference you can read down a phone.
- 06
Verification and retest
Anyone holding the report can verify it publicly without seeing its contents. Fixes are retested as part of the engagement — “fixed” means we confirmed it.
Questions we are asked
- Is an exposed RPC endpoint actually dangerous?
- It depends entirely on which methods are reachable. A read-only endpoint is mostly a resource-abuse problem. An endpoint exposing admin or wallet namespaces is a different category of issue, and we have seen both left open by defaults nobody revisited.
- We are on a managed staking provider. Is this relevant?
- Partly. You inherit their infrastructure security, and you still own your access controls, withdrawal addresses and monitoring. We can review what remains yours and tell you plainly which risks you have transferred and which you only feel you have.
- Do you help with slashing protection specifically?
- Yes — double-signing protection, remote signer configuration and the failover design that avoids two instances signing at once. We will not promise you will never be slashed; we reduce the routes that cause it.
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