[security-observability] Daily Security Observability Report — 2026-08-23

[github-actions[bot]]

Executive Summary

Over the last 7 days, 98 firewall-enabled workflow runs were analyzed across the github/gh-aw repository, generating 4,578 total network requests with a block rate of just 0.9% (41 blocked / 4,537 allowed). The blocked traffic is concentrated almost entirely around Google-related domains (content-autofill.googleapis.com, www.google.com, accounts.google.com, android.clients.google.com, www.gstatic.com, clients2.google.com) triggered by a single workflow, Smoke Copilot, which appears to be exercising a Chromium/Copilot browser session that attempts autofill and Google account telemetry calls unrelated to the workflow's actual task — these are expected and benign blocks from the firewall's default-deny posture.

No DIFC (Data Integrity and Flow Control) integrity-filtered events were found in the last 7 days, indicating no tool calls were flagged for integrity or secrecy violations across the analyzed runs during this window.

Overall, the security posture looks healthy: blocked traffic is low-volume, attributable to a single known workflow, and consistent with expected browser/autofill noise rather than exfiltration or malicious activity. No cross-cutting themes were observed between firewall and DIFC signals since DIFC produced no events this period.

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🔥 Firewall Analysis

Key Firewall Metrics

Metric	Value
Workflows analyzed (firewall-enabled)	98
Total network requests monitored	4,578
✅ Allowed requests	4,537
🚫 Blocked requests	41
Block rate	0.9%
Total unique blocked domains	8

📈 Firewall Request Trends

Blocked request volume remains a small, flat fraction of total traffic across the 7-day window, with no visible spikes or trending increase. Allowed traffic dominates the chart, consistent with normal MCP/tool network activity for agentic workflows.

Top Blocked Domains

The top blocked domains are all Google infrastructure endpoints (content-autofill.googleapis.com, www.google.com, accounts.google.com, etc.), attributed almost entirely to the Smoke Copilot workflow, which likely runs a browser session that attempts background autofill/telemetry calls. One (unknown) domain entry spans 8 different workflows and warrants closer inspection to identify the underlying host.

Most Frequently Blocked Domains

Domain	Times Blocked	Workflows	Category
content-autofill.googleapis.com:443	11	Smoke Copilot	Browser telemetry
www.google.com:443	10	Smoke Copilot	Browser/search
(unknown)	8	AI Moderator, Constraint Solving — Problem of the Day, Daily Go Test Parallelizer, Daily Malicious Code Scan Agent, Daily Max Ai Credits Test, GitHub MCP Remote Server Tools Report Generator, PureLock, Workflow Normalizer	Unresolved/unknown
accounts.google.com:443	7	Smoke Copilot	Google auth
android.clients.google.com:443	4	Smoke Copilot	Google services
www.gstatic.com:443	4	Smoke Copilot	Google static assets
clients2.google.com	2	Smoke Copilot	Google services
storage.googleapis.com:443	2	Delight	Cloud storage

View Detailed Request Patterns by Workflow

• Smoke Copilot: the primary source of blocked traffic (38 of 41 blocks), all tied to Google browser/autofill/telemetry endpoints reached during a browser automation smoke test. This is expected default-deny firewall behavior and not indicative of compromise.
• Delight: 2 blocked requests to storage.googleapis.com, likely an attempted cloud storage read/write outside the allowlist.
• AI Moderator, Constraint Solving — Problem of the Day, Daily Go Test Parallelizer, Daily Malicious Code Scan Agent, Daily Max Ai Credits Test, GitHub MCP Remote Server Tools Report Generator, PureLock, Workflow Normalizer: each contributed to a single (unknown) blocked domain entry; the firewall log did not resolve the hostname, so further investigation would require raw log inspection for these specific runs.

View Complete Blocked Domains List

• accounts.google.com:443
• android.clients.google.com:443
• clients2.google.com
• content-autofill.googleapis.com:443
• storage.googleapis.com:443
• www.google.com:443
• www.gstatic.com:443
• (unknown)

🔒 Firewall Security Recommendations

1. Smoke Copilot: if browser-based autofill/Google telemetry calls are expected as part of the smoke test's browser automation, consider explicitly allowlisting the specific Google domains it needs (or disabling autofill in the test browser profile) to reduce noisy but benign block log entries.
2. Delight: review why this workflow attempted to reach storage.googleapis.com — confirm whether this is an intended integration that needs an allowlist entry, or an unexpected/unnecessary network call that should be removed from the workflow's tool configuration.
3. (unknown) domain across 8 workflows: investigate raw firewall logs for these specific runs to resolve the actual hostname behind the blocked request; an unresolved domain appearing across many unrelated workflows could indicate a shared MCP server or base image making a common outbound call that should either be allowlisted or the underlying cause pruned.
4. No evidence of policy rule-level attribution (rule_hits) was available in the audited runs, so per-rule tuning could not be assessed this period — consider verifying that policy rule metadata is being captured/reported by the audit pipeline for future runs.

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🔒 DIFC Integrity Analysis

No DIFC integrity-filtered events found in the last 7 days. All checked runs (starting from the cache snapshot restored on 2026-08-23T16:04:18Z and freshly collected data at /tmp/gh-aw/agent/integrity/filtered-logs.json) returned zero filtered events, meaning no tool calls were blocked by the Data Integrity and Flow Control system during this window. No charts or per-workflow/per-server/per-user breakdowns are available since there is no underlying data.

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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: https://github.com/github/gh-aw/actions/runs/32650093233

Generated by 🔒 Daily Security Observability Report · auto · 59.3 AIC · ⌖ 9.47 AIC · ⊞ 15.4K · ◷

• expires on Aug 26, 2026, 8:27 AM UTC-08:00

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