diff --git a/adk-rust/crates/detmir-portal/src/main.rs b/adk-rust/crates/detmir-portal/src/main.rs
index 2221b7a..02ab667 100644
--- a/adk-rust/crates/detmir-portal/src/main.rs
+++ b/adk-rust/crates/detmir-portal/src/main.rs
@@ -7,6 +7,9 @@ use std::sync::{Arc, Mutex};
 use std::thread;
 use std::time::{Duration, Instant};
 
+#[cfg(unix)]
+use std::os::unix::process::CommandExt;
+
 use anyhow::{Context, Result, anyhow};
 use base64::Engine;
 use base64::engine::general_purpose::STANDARD as BASE64_STANDARD;
@@ -27,6 +30,15 @@ const UEBA_BASELINE_MIN_SAMPLES: usize = 3;
 const SNAPSHOT_CACHE_TTL: Duration = Duration::from_secs(5);
 const DEFAULT_DEPARTMENT_LABEL: &str = "Без подразделения";
 
+#[cfg(unix)]
+const SIGKILL: i32 = 9;
+
+#[cfg(unix)]
+unsafe extern "C" {
+    fn setpgid(pid: i32, pgid: i32) -> i32;
+    fn kill(pid: i32, sig: i32) -> i32;
+}
+
 type SnapshotCache = Arc<Mutex<Option<CachedSnapshot>>>;
 
 #[derive(Clone, Debug)]
@@ -2570,13 +2582,25 @@ fn security_events_block(summary: &SecurityEventsSummary) -> SummaryBlock {
 }
 
 fn run_shell(command: &str, timeout: Duration) -> Result<(String, String, bool)> {
-    let mut child = Command::new("/bin/sh")
+    let mut shell = Command::new("/bin/sh");
+    shell
         .arg("-lc")
         .arg(command)
         .stdout(Stdio::piped())
-        .stderr(Stdio::piped())
-        .spawn()
-        .with_context(|| format!("spawn {command}"))?;
+        .stderr(Stdio::piped());
+    #[cfg(unix)]
+    unsafe {
+        shell.pre_exec(|| {
+            // Isolate portal probes so a timeout can kill helper grandchildren
+            // such as detmir-check, not only the shell wrapper.
+            if setpgid(0, 0) == 0 {
+                Ok(())
+            } else {
+                Err(std::io::Error::last_os_error())
+            }
+        });
+    }
+    let mut child = shell.spawn().with_context(|| format!("spawn {command}"))?;
     let started = Instant::now();
     loop {
         if let Some(status) = child.try_wait()? {
@@ -2591,7 +2615,7 @@ fn run_shell(command: &str, timeout: Duration) -> Result<(String, String, bool)>
             return Ok((stdout, stderr, status.success()));
         }
         if started.elapsed() > timeout {
-            let _ = child.kill();
+            kill_shell_tree(&mut child);
             let _ = child.wait();
             return Err(anyhow!(
                 "command timed out after {}s: {command}",
@@ -2602,6 +2626,21 @@ fn run_shell(command: &str, timeout: Duration) -> Result<(String, String, bool)>
     }
 }
 
+#[cfg(unix)]
+fn kill_shell_tree(child: &mut std::process::Child) {
+    let pgid = child.id() as i32;
+    // Negative pid targets the process group created in pre_exec above.
+    // Best-effort cleanup: the caller still waits on the direct child.
+    unsafe {
+        let _ = kill(-pgid, SIGKILL);
+    }
+}
+
+#[cfg(not(unix))]
+fn kill_shell_tree(child: &mut std::process::Child) {
+    let _ = child.kill();
+}
+
 fn build_health(snapshot: &Snapshot) -> HealthResponse {
     let mut sources = BTreeMap::new();
     sources.insert("detmir_status".to_string(), snapshot.detmir_status.ok);
@@ -9304,6 +9343,15 @@ mod tests {
         assert!(!serde_json::to_string(&value).unwrap().contains("\\uFFFD"));
     }
 
+    #[cfg(unix)]
+    #[test]
+    fn run_shell_timeout_kills_grandchildren_without_blocking_stdout() {
+        let started = Instant::now();
+        let err = run_shell("sh -c 'sleep 5 & wait'", Duration::from_millis(200)).unwrap_err();
+        assert!(started.elapsed() < Duration::from_secs(2));
+        assert!(err.to_string().contains("command timed out"));
+    }
+
     #[test]
     fn agent_quality_history_counts_seven_ok_days() {
         let (_dir, path) = write_history(
diff --git a/adk-rust/crates/detmir-portal/src/static/app.js b/adk-rust/crates/detmir-portal/src/static/app.js
index 02a6cac..d557124 100644
--- a/adk-rust/crates/detmir-portal/src/static/app.js
+++ b/adk-rust/crates/detmir-portal/src/static/app.js
@@ -4,6 +4,7 @@ const state = {
   period: "today",
   links: null,
   readiness: null,
+  operatorData: null,
   reports: null,
   cases: null,
   pendingScrollSelector: null,
@@ -205,6 +206,27 @@ function setViewMode(mode) {
     setTab("operator");
     return;
   }
+  if (state.operatorData && state.reports) {
+    const content = document.getElementById("content");
+    if (content) {
+      content.innerHTML = renderOperator(state.operatorData, state.reports, { cases: state.cases });
+    }
+    setLoadStatus("READY", "Данные готовы", 100);
+    consumePendingScroll();
+    if (mode === "security" && !state.cases) {
+      loadJson("/cases")
+        .then(cases => {
+          state.cases = cases;
+          if (currentViewMode() === "security" && state.tab === "operator" && content) {
+            content.innerHTML = renderOperator(state.operatorData, state.reports, { cases: state.cases });
+          }
+        })
+        .catch(() => {
+          state.cases = { ok: false, cases: [] };
+        });
+    }
+    return;
+  }
   refresh({ stage: VIEW_MODES[mode].stage });
 }
 
@@ -2800,6 +2822,7 @@ async function refresh(options = {}) {
 async function loadCurrentTab() {
   if (state.tab === "operator") {
     const data = await loadJson("/operator");
+    state.operatorData = data;
     state.reports = await loadJson("/reports").catch(() => state.reports);
     if (currentViewMode() === "security") {
       state.cases = await loadJson("/cases").catch(error => ({ ok: false, error: error.message, cases: [] }));
diff --git a/adk-rust/crates/detmir-portal/src/static/index.html b/adk-rust/crates/detmir-portal/src/static/index.html
index 5150901..7510ddb 100644
--- a/adk-rust/crates/detmir-portal/src/static/index.html
+++ b/adk-rust/crates/detmir-portal/src/static/index.html
@@ -82,6 +82,6 @@
       <section id="summary" class="summary-grid service-summary"></section>
     </main>
   </div>
-  <script src="app.js"></script>
+  <script src="app.js?v=20260604-security-cache"></script>
 </body>
 </html>