Lock down a Guidewire Cloud API integration so it survives a SOC 2 audit, an NAIC Model Audit Rule review, and a real-world incident — least-privilege role design, encrypted committed secrets via SOPS+age, PII redaction in logs (SSN/DOB/claim narrative), audit-trail capture, cross-tenant isolation for multi-carrier integrations, and detect-and-rotate response to token leaks. Use when designing the security posture for a new integration, hardening an existing one before audit, or responding to a leaked credential. Trigger with "guidewire security", "guidewire rbac", "guidewire pii redaction", "guidewire audit trail", "guidewire secret leak".
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Lock down a Guidewire Cloud API integration so it survives a SOC 2 audit, an NAIC Model Audit Rule review, and a real-world incident — least-privilege role design, encrypted committed secrets via SOPS+age, PII redaction in logs (SSN/DOB/claim narrative), audit-trail capture, cross-tenant isolation for multi-carrier integrations, and detect-and-rotate response to token leaks. Use when designing the security posture for a new integration, hardening an existing one before audit, or responding to a leaked credential. Trigger with "guidewire security", "guidewire rbac", "guidewire pii redaction", "guidewire audit trail", "guidewire secret leak".
Build the security posture an integration needs in production: secrets that cannot leak from the repo, roles that cannot escalate beyond their job, logs that cannot exfiltrate PII, and an audit trail that satisfies SOC 2 and NAIC Model Audit Rule reviewers. This skill is the application of generic security practice to the specific shape of Guidewire Cloud API — claim and policy data carry regulated PII; a leaked client_secret can read or write a carrier's entire book of business; carriers operate under state-level insurance regulator scrutiny.
Five real-world failures this skill prevents:
Plaintext .env in the repo — a git push to a public mirror leaks live credentials; the only defense is to never have plaintext in the tree, full stop.
Over-scoped Service Application — every integration starts with pc.account.write "to make development easier" and is never narrowed; the audit finding cites OWASP A01 broken access control.
PII in observability — console.log(claim) dumps SSN, DOB, claim narrative, and phone numbers into the logging pipeline, where they replicate to every downstream tool the company uses.
No audit trail of what the integration did — security review asks "what did this service touch in the last 90 days" and the answer is "everything in the access log, but we cannot tell which actor"; the audit fails.
Cross-tenant data bleed — a multi-tenant integration uses one set of credentials per environment instead of per tenant; a bug in tenant routing leaks Carrier A's data into Carrier B's response.
Prerequisites
A working auth + SDK layer per guidewire-install-auth and guidewire-sdk-patterns
sops and age installed locally (brew install sops age / apt install sops / mise install age)
Access to GCC for the integration's Service Application configuration
A logging/observability stack the integration writes to (Datadog, Splunk, ELK, or similar) — required for the redaction patterns to apply
Instructions
Build the posture in this order. Each layer addresses one of the five failures listed in Overview.
1. Encrypted committed secrets via SOPS + age
Plaintext .env files committed to a repo are the single largest source of credential leaks in the SaaS world. SOPS + age allows secrets to live in the repo as ciphertext that only holders of the age private key can read. The audit trail of "who rotated what when" comes free with .
In the runtime, decrypt via the anchored regex pattern (do not use the naive sed 's/^/export /' — see guidewire-install-auth for the bare-export-leak failure mode):
eval"$(sops -d secrets.prod.sops.yaml | sed -nE 's/^([A-Za-z_][A-Za-z0-9_]*)=(.*)$/export \1=\2/p')"
Per-environment recipient lists in .sops.yaml mean dev keys cannot decrypt prod secrets — limit blast radius of a compromised dev workstation.
2. Least-privilege roles per Service Application
In GCC > Identity & Access > Applications > [your-app] > Permissions, assign only the roles the integration actually needs. A read-only reporting integration should hold pc.account.read and pc.policy.read only; a webhook event consumer needs zero write roles.
Validate the issued token carries only the expected scopes on every refresh (guidewire-install-auth's scope-drift gate). A token with extra scopes is a configuration error; alert and treat as an incident.
3. PII redaction in logs
Guidewire claim and contact resources carry regulated PII: SSN, date of birth, driver's license number, claim narrative, phone, email, address. Redact at the logging boundary, not in the calling code (which always misses cases). Apply the redactor to every structured log entry the integration emits.
Wire the redactor into the logger transport (Pino redact, Winston format, OpenTelemetry log processor) so every log entry passes through it before serialization. Per-call console.log(redactPii(claim)) works in theory and fails in practice — engineers forget.
4. Audit trail of integration actions
Every state-mutating Cloud API call should leave a row in an internal audit table the integration owns. Cloud API has its own audit, but it cannot tell investigators which logical operation drove a request, only that the Service Application made the call.
CREATE TABLE integration_audit (
id UUID PRIMARY KEY,
correlation_id UUID NOT NULL,
actor TEXT NOT NULL, -- the upstream user, broker, or job triggering the call
service_app TEXT NOT NULL, -- the GCC Service Application id
api_method TEXT NOT NULL, -- POST / PATCH / DELETE
api_path TEXT NOT NULL, -- /pc/rest/v1/policies/pc:8001
resource_id TEXT, -- post-response id
idempotency_key UUID NOT NULL,
status_code INTNOT NULL,
reason TEXT, -- "renewal-window-open", "broker-quote-flow", etc.at TIMESTAMPTZ NOT NULLDEFAULT now()
);
Each row pairs to one Cloud API call. SOC 2 reviewers ask "show me every write this integration made on behalf of broker acme-insurance in March"; this table makes the answer a SQL query, not a forensic exercise.
5. Cross-tenant isolation for multi-carrier integrations
If the integration serves more than one carrier, every carrier gets:
A separate Service Application registration in GCC (separate client_id/client_secret)
A separate entry in secrets.[carrier-slug].sops.yaml encrypted to a tenant-specific recipient
A separate row in tenant-routing config that maps inbound requests to outbound credentials
A separate scope assignment audited per the role table above
Sharing one Service Application across tenants creates legal and contractual exposure beyond the technical risk; a single compromised credential reveals every tenant's data, and an audit finding will cite SOC 2 CC6.1 (logical access controls).
6. Detect-and-rotate response to suspected secret leak
When a secret is suspected leaked (a developer pasted it into a Slack message, a CI log captured it, a public commit briefly contained it):
# 1. Rotate immediately in GCC — generates a new client_secret# 2. Update the encrypted secret file
sops secrets.prod.sops.yaml # set GW_CLIENT_SECRET to the new value
git commit -m "rotate(secrets): GW client secret — leak suspected $(date -Iseconds)"# 3. Deploy to all environments# 4. Use dual-secret window (per guidewire-install-auth) so in-flight requests do not fail# 5. Audit Cloud API access logs for unauthorized calls during the leak window# 6. Document the incident in the audit table per step 4
Do not "wait until business hours" — credential leaks compound by the minute. The rotation is reversible; the data exfiltration is not.
Output
A production-grade security posture ships with all of the following:
All secrets stored as secrets.*.sops.yaml files committed to git, encrypted to per-environment age recipients; no plaintext .env files anywhere in the tree.
Service Application roles assigned per least privilege, validated on every token refresh by the scope-drift gate.
A logger configured to apply redactPii() to every structured log entry before serialization.
An integration_audit table populated synchronously with every state-mutating Cloud API call.
Per-tenant Service Applications and secret files for any multi-carrier integration.
A documented detect-and-rotate runbook with a target rotation time of <30 minutes from suspicion to deploy.
A developer's age key decrypts dev only; the lead's key decrypts every environment for incident response. Rotation of an environment's age recipient is sops updatekeys secrets.<env>.sops.yaml.
scope-drift gate alerts on every refresh; not a transport failure, surface as incident
Plaintext .env discovered in git history
committed before SOPS adoption
rotate every credential in the leaked file immediately; rewrite history with git filter-repo if the leak is recent
Logger emits SSN to Splunk
redactPii not wired into the transport
add at the logger config, not at call sites; remove the per-call redactPii() in favor of transport-level
SOPS commit accidentally encrypted to wrong recipient
.sops.yaml regex did not match
run sops updatekeys on the affected file; recipients are visible in the YAML metadata
Bare export in cron mail leaks every env var
naive sed 's/^/export /' instead of anchored regex
switch to sed -nE 's/^([A-Za-z_][A-Za-z0-9_]*)=(.*)$/export \1=\2/p'
Audit query "what did integration do for broker X last month" returns nothing
audit table not populated
wire integration_audit insert into every write helper; backfill is impossible
One client_secret used across two carriers
shared Service Application
split immediately; rotate both halves to scope the blast radius
Token in a CI log
secret printed accidentally during deployment
rotate via the detect-and-rotate runbook; audit access during the leak window
For deeper coverage (Vault Agent integration, dynamic secrets, token-binding, federated identity, FIPS-140 trust stores), see implementation guide and API reference.
See Also
guidewire-install-auth — the auth layer this hardens; scope-drift gate, dual-secret rotation
guidewire-sdk-patterns — error mapping that surfaces 403 as a structured exception this skill alerts on
guidewire-observability-and-incident-response — emits the alerts this skill's audit table powers
guidewire-ci-cd-pipeline — promotes encrypted secrets through environments without plaintext exposure
