# Reliability & Security

> Voltade's commitment to reliability and security - Learn about our engineering principles, security architecture, data protection, and compliance measures.

At Voltade, reliability and security are foundational. Our products serve end-users globally, so our services must be fast, available, and secure—everywhere and at all times.

Last updated: 25 August 2026

## On This Page

Security Architecture & Perimeter · Voltade OS Infrastructure · Availability Monitoring · Alerting & Incident Response · Service Recovery · Data Protection · Logging & Observability · Decoupled End-to-End Checks · Isolated Services · Redundant Infrastructure · Backups & Disaster Recovery · Testing & Incremental Rollouts · Software Updates & Patch Management · DDoS Protection & Caching · Independently Verified Controls · Trust & Transparency · Contact Our Security Team

## Security Architecture & Perimeter

We design for "least privilege" and minimal attack surface across identity, network, and application layers.

- Identity & access: Centralised SSO/RBAC via ZITADEL; application sessions hardened with Better Auth; enforced MFA for all privileged accounts; keys and secrets stored in cloud KMS/secret stores with rotation.
- Network controls: Cloudflare WAF + firewall rules in front of all public endpoints; private networking for internal services; Kubernetes NetworkPolicies for east-west isolation; rate limiting and pagination on public APIs.
- Tenant isolation: Per-tenant scoping, row-level security, and service-to-service identity; no cross-tenant data access paths.
- Developer access: Principle of least privilege, regularly reviewed; unused tokens/SSH keys removed; audited admin paths; break-glass procedures tested.

## Voltade OS Infrastructure

Our stack is built for resilience with high availability and GitOps automation, hosted in Singapore.

- Cloud providers: Envoy CRM runs on Hetzner Cloud (Singapore, sin-dc1) and Volty runs on AWS (Singapore, ap-southeast-1), both fronted by Cloudflare for global Anycast, WAF, and caching.
- Orchestration: Kubernetes for self-healing, scaling, and isolation; deployments managed with ArgoCD (GitOps).
- Databases: CloudNativePG (CNPG) for high-availability Postgres with WAL streaming; pgBouncer for connection pooling; self-hosted Supabase components where applicable.
- Workflows: Windmill for background jobs, retries, and idempotent workflows.
- Observability: Metrics in Grafana, tracing/logs via SigNoz (OpenTelemetry); external uptime with Better Stack.
- Source & CI: Gitea hosts repositories and pipelines with signed images and policy checks.

## Availability Monitoring

We monitor from the outside-in and the inside-out to detect issues quickly.

- External HTTP and heartbeat checks from multiple regions via Better Stack.
- Transactional probes for critical user journeys (our "immune system").
- Provider-independent monitors so the watcher doesn't fail with the watched.
- Grafana SLO dashboards tracking latency, errors, and saturation.

## Alerting & Incident Response

When signals breach SLOs, we escalate rapidly with clear ownership and communication.

- 24/7 on-call rotations with multi-channel paging via Better Stack.
- Runbooks for common scenarios (db failover, queue backlog, auth outage, cache issues).
- Transparent user updates for material incidents and a public status page where applicable.
- Post-incident reviews with documented RCA and preventive actions.

## Service Recovery

We prefer safe rollbacks to last known-good over risky hot-patches in production.

- Restart workloads and autoscaled deployments first.
- Rollback with ArgoCD to a healthy Git revision (schema-safe).
- Escalate to extended maintenance only when necessary, with fixes tested in staging before release.
- No untested changes in prod—avoid cascading failures.

## Data Protection

We minimise data exposure and secure data in transit and at rest.

- TLS everywhere; storage encryption; least-privilege data access.
- PII logging is off by default; redaction/masking in logs and traces.
- Per-tenant isolation (RLS and scoped tokens) to prevent cross-tenant access.
- Cloudflare in front of all public surfaces (WAF, bot management, TLS termination).

## Logging & Observability

We instrument everything that matters, without capturing unnecessary personal data.

- Structured app and infra logs to SigNoz; metrics to Grafana; traces via OpenTelemetry.
- Business-event logs (e.g., verification emails, integration setup) for fast diagnosis.
- Windmill tracks workflow outcomes, retries, and idempotency.
- Provider logs (AWS CloudWatch and Hetzner) plus Cloudflare logs feed anomaly alerts.

## Decoupled End-to-End Checks

Independent verifiers assert key outcomes and invariants, separate from app runtime.

- Separate repos/containers run checks (e.g., "no job stuck", "calc results valid").
- Failures open incidents automatically; checks are provider-diverse where possible.

## Isolated Services

We reduce coupling to avoid cascading failures and supply-chain risk.

- API, frontend, and background workers are isolated and rate-limited.
- Service calls authenticated via mTLS or signed tokens; strict egress controls.
- Environment segregation with separate VPC/VNet segments and namespaces.

## Redundant Infrastructure

We assume components—and sometimes providers—will fail, and design for graceful degradation.

- Stateless services behind Cloudflare + cloud load balancers for horizontal scaling.
- Kubernetes self-healing with PodDisruptionBudgets and node pools spread across fault domains where the provider supports it.
- CNPG with WAL streaming and read replicas; pgBouncer to smooth connection bursts.
- Self-hosted Supabase components externalize state and are replaceable.
- Provider-agnostic, GitOps-managed deployments (ArgoCD) so workloads can be rebuilt or relocated if a provider degrades.

## Backups & Disaster Recovery

We plan for the unexpected with clear objectives and practiced recovery.

- RTO (target): ≤ 6 hours for complete downtime.
- RTC (current): ~1–3 hours depending on incident scope.
- RPO (target): ≤ 12 hours.
- RPC (current): ~10 minutes–1 hour via frequent snapshots and WAL archives.
- Automated backups & PITR: CNPG continuous archiving; restore drills performed regularly.
- Backup storage: Encrypted backups written to AWS S3 in Singapore (single-region). There is no cross-region or cross-cloud replica.

## Testing & Incremental Rollouts

We ship safely with automated tests, previews, and phased releases.

- GitOps with ArgoCD; every change lands via PR in Gitea with required checks and reviews.
- Unit, integration, and contract tests; coverage tracked with higher thresholds on critical paths.
- Ephemeral preview environments for realistic validation.
- Canary/blue-green rollouts; halt/rollback immediately on regressions.

## Software Updates & Patch Management

Voltade is delivered as a multi-tenant hosted service. Customers do not install, host or patch any Voltade software component, and therefore carry no patch-implementation obligation. Every security patch, dependency update and application release is designed, tested and deployed centrally by Voltade.

### Our commitments to you

- Critical and important security patches are applied within 48 hours of a fix becoming available.
- No update reaches production without passing the automated verification gate — production build, full type check, static analysis, dead-code and dependency checks, component tests, and the integration suite run against a real database with migrations applied. A failure blocks the deployment outright.
- Compatibility testing is performed in a staging environment before any operating system, dependency or application update is promoted.
- Updates are delivered without a version-pinning option: you always run the patched version, and receive it on your next page load.

### How we tell you

- Release notes for each material release are published at voltade.com/product-updates.
- Any change requiring action on your side — a browser minimum-version change, an integration credential re-authorisation — is sent in advance to your named administrators and flagged on the release note.
- Planned maintenance windows and live service health are published at status.voltade.com.
- Security-relevant patches affecting customer data are communicated directly, in line with our incident and breach notification commitments.

### What we ask of you

- Keep your web browser current. Voltade supports the two most recent major versions of Chrome, Edge, Safari and Firefox.
- Keep the devices used to access Voltade patched and set to receive automatic operating-system updates.

Where a deployment is customer-managed rather than hosted by Voltade, written installation and upgrade instructions are supplied as part of the project documentation and work order for that engagement.

## DDoS Protection & Caching

We defend against volumetric and application-layer attacks without blocking legitimate users.

- Cloudflare WAF, bot management, and global CDN shielding origin infrastructure.
- Tiered caching and origin shields; surge queues and rate limits on dynamic endpoints.
- Challenge flows (e.g., captcha) for suspicious traffic while keeping UX smooth for real users.

## Independently Verified Controls

The following controls were verified against our live production account on 19 August 2026, by command-line query and console capture. The full evidence pack is available to enterprise customers under NDA.

- Operational log retention: All seven production service log groups retain 12 months of logs, managed as infrastructure-as-code and confirmed against the live account.
- Database encryption at rest: The production Aurora cluster and every automated snapshot are KMS-encrypted. Storage encryption was confirmed on the cluster and on the five most recent automated snapshots.
- Object storage, application files: Versioning enabled. Default encryption is SSE-KMS with bucket keys. Customer-supplied-key uploads are blocked.
- Object storage, inbound mail spool: Default encryption is SSE-KMS under a dedicated customer-managed key, with bucket keys enabled, and objects auto-expire after 30 days. Verified end to end with a live test message. Versioning is deliberately off: this is a delete-after-ingest spool, and retaining deleted mail versions would work against data minimisation.
- Audit trail: The management-event trail has logged continuously since 2023: multi-region, global service events included, log-file integrity validation on, and log files SSE-KMS encrypted under a dedicated customer-managed key.
- Threat detection: AWS GuardDuty is enabled on the production account, with findings published every six hours.
- Workforce authentication: Two-step verification is enforced for all users in the corporate domain, at the top-level organisational unit, with no exceptions and no opt-out. Administrative console sign-in additionally requires a passkey.

Verified 19 August 2026 in ap-southeast-1 (Singapore).

## Trust & Transparency

- Clear incident communications and status updates for material events.
- Engineering runbooks and security practices documented for internal and customer reviews.
- Customer data remains the customer's; we practise data minimisation and purpose limitation.

## Contact Our Security Team

For security questions or to report a potential vulnerability:

Security Email: team@voltade.co

General Inquiries: team@voltade.co

Address: 75 Ayer Rajah Crescent #01-16, Singapore 139953

We take security reports seriously and aim to acknowledge verified vulnerabilities within 24 hours.

## Links

- [voltade.com/product-updates](https://voltade.com/sg/product-updates)
