[security-observability] Daily Security Observability Report — 2026-06-13

[github-actions[bot]]

Executive Summary

Today's security observability run analyzed 35 firewall-enabled workflow runs on 2026-06-13, monitoring 1,756 total network requests across the repository's agentic workflows. The firewall blocked 177 requests (10.1% block rate) across 13 unique domains. The dominant blocked traffic pattern (92% of all blocks) originates from Google browser telemetry services being triggered by Playwright-based smoke test workflows — an expected and explainable pattern with clear tuning opportunities.

On the Data Integrity and Flow Control (DIFC) side, the system recorded zero integrity-filtered events over the last 7 days, indicating a healthy and compliant tool-call posture across all workflows. There are no cross-cutting concerns linking firewall blocks to DIFC filtering in this period.

Today's block count of 177 is elevated compared to yesterday's 9, primarily driven by more Playwright-based smoke tests executing on 2026-06-13. This is not a security incident but does highlight opportunities to reduce firewall noise through targeted configuration changes.

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🔥 Firewall Analysis

Key Firewall Metrics

Metric	Value
Workflows analyzed (firewall-enabled)	35
Total network requests monitored	1,756
✅ Allowed requests	1,579
🚫 Blocked requests	177
Block rate	10.1%
Total unique blocked domains	13

📈 Firewall Request Trends

Today's 177 blocked requests are elevated compared to the previous day (9 blocked on 2026-06-12), returning to a level similar to 2026-06-11 (197 blocked). The spike is driven by Playwright browser automation workflows making Google telemetry calls, a recurring pattern that accounts for the majority of blocked traffic across all dates. The 2026-05-20 peak (735 blocked) remains an outlier worth investigating historically.

Top Blocked Domains

Google services dominate the blocked domain list, collectively accounting for 163 of 177 blocked requests (92%). These are browser-internal telemetry and autofill services triggered when Playwright spins up Chromium instances during smoke tests. The playwright.azureedge.net family (3 domains) indicates attempted CDN downloads during test execution.

Most Frequently Blocked Domains

Domain	Times Blocked	Category	Assessment
content-autofill.googleapis.com:443	53	Google browser autofill	🟡 Expected — Chromium automation
www.google.com:443	45	Google homepage	🟡 Expected — Chromium startup
accounts.google.com:443	29	Google accounts	🟡 Expected — Chromium automation
safebrowsingohttpgateway.googleapis.com:443	16	Google Safe Browsing	🟡 Expected — Chromium automation
android.clients.google.com:443	15	Android/Chrome telemetry	🟡 Expected — Chromium automation
(unknown)	6	Unknown	⚠️ Investigate origin
clients2.google.com	5	Google clients API	🟡 Expected — Chromium automation
antigravity-unleash.goog:443	2	Internal feature flags	⚠️ Review allowlist need
localhost:8080	2	Local service	⚠️ Workflow config issue
playwright-akamai.azureedge.net:443	1	Playwright CDN (Akamai)	🟡 Pre-install browsers
playwright-verizon.azureedge.net:443	1	Playwright CDN (Verizon)	🟡 Pre-install browsers
playwright.azureedge.net:443	1	Playwright CDN	🟡 Pre-install browsers
proxy.golang.org:443	1	Go module proxy	✅ Mostly allowed (18/19)

View Detailed Request Patterns by Domain (All Traffic)

Domain	Total	Allowed	Blocked
api.githubcopilot.com:443	609	609	0
o205451.ingest.us.sentry.io	463	463	0
gh-aw-foundry.openai.azure.com:443	160	160	0
api.anthropic.com:443	138	138	0
api.openai.com:443	70	70	0
github.githubassets.com:443	60	60	0
content-autofill.googleapis.com:443	53	0	53
www.google.com:443	45	0	45
accounts.google.com:443	29	0	29
github.com:443	22	22	0
proxy.golang.org:443	19	18	1
safebrowsingohttpgateway.googleapis.com:443	16	0	16
android.clients.google.com:443	15	0	15
registry.npmjs.org:443	7	7	0
storage.googleapis.com:443	7	7	0
(unknown)	6	0	6
collector.github.com:443	6	6	0
clients2.google.com	5	0	5
api.github.com:443	4	4	0
ab.chatgpt.com:443	2	2	0
antigravity-unleash.goog:443	2	0	2
chatgpt.com:443	2	2	0
generativelanguage.googleapis.com:443	2	2	0
localhost:8080	2	0	2
login.microsoftonline.com:443	2	2	0
run-actions-1-azure-eastus.actions.githubusercontent.com:443	2	2	0
sum.golang.org:443	2	2	0
140.82.114.3:443	1	1	0
172.30.0.30:10003	1	1	0
play.googleapis.com:443	1	1	0
playwright-akamai.azureedge.net:443	1	0	1
playwright-verizon.azureedge.net:443	1	0	1
playwright.azureedge.net:443	1	0	1

🔒 Firewall Security Recommendations

1. Suppress Chromium telemetry noise: Configure Playwright smoke tests with --disable-features=AutofillServerCommunication,SafeBrowsing or use --block-new-web-contents launch args to prevent Chrome from making Google telemetry calls. This alone would eliminate ~92% of blocked requests.

2. Pre-install Playwright browsers: Add npx playwright install chromium to the workflow copilot-setup-steps to avoid CDN downloads (playwright.azureedge.net, playwright-akamai.azureedge.net, playwright-verizon.azureedge.net) during test execution.

3. Investigate (unknown) origin: 6 blocked requests have no domain attribution. Enable verbose firewall logging or add request-source tagging to identify which workflow/process generates these.

4. Review antigravity-unleash.goog:443: The Smoke Antigravity workflow is attempting to reach this internal feature flag service. If the service is required for test fidelity, add it to the firewall allowlist. If not needed during CI, mock the feature flag client.

5. Fix localhost:8080 attempts: 2 requests to localhost:8080 were blocked. A workflow is attempting to reach a local service that isn't running. Audit the Smoke CI or Agent Container Smoke Test workflows for local service dependencies.

6. Monitor proxy.golang.org intermittent block: This domain is 95% allowed (18/19) but had 1 block. Likely a transient network issue, but worth monitoring. If it recurs, ensure it remains on the allowlist for Go module workflows.

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🔒 DIFC Integrity Analysis

Key DIFC Metrics

Metric	Value
Total filtered events	0
Unique tools filtered	—
Unique workflows affected	—
Most common filter reason	—
Busiest day	—

✅ No DIFC integrity-filtered events found in the last 7 days. All tool calls across all workflows passed integrity and secrecy policy checks. This is a healthy signal indicating well-structured workflow prompts and appropriate tool usage.

📈 DIFC Events Over Time

No events recorded. DIFC filtering is operating correctly with zero false positives or policy violations.

🔧 Top Filtered Tools

No tools triggered DIFC filtering in the reporting period.

🏷️ Filter Reasons and Tags

No integrity or secrecy filtering events to analyze.

💡 DIFC Tuning Recommendations

1. Maintain current posture: Zero filtered events is the desired steady state. Continue monitoring daily to detect any future policy violations early.
2. Establish a baseline alert threshold: If DIFC events rise above 5 per day in a future report, investigate the triggering workflow and tool immediately.
3. Expand DIFC coverage: As new agentic workflows are added, verify they are enrolled in DIFC monitoring to maintain full observability.

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Generated by the Daily Security Observability workflow (consolidated from Daily Firewall Reporter + Daily DIFC Analyzer)
Analysis window: Last 7 days | Repository: github/gh-aw
Run: §27472103077

Generated by 🔒 Daily Security Observability Report · 494 AIC · ⌖ 22.2 AIC · ⊞ 24.1K · ◷

• expires on Jun 16, 2026, 8:50 AM UTC-08:00