diff --git a/.env.default b/.env.default
index ca22a51..332383c 100644
--- a/.env.default
+++ b/.env.default
@@ -1,12 +1,13 @@
 # production or development
-NODE_ENV=
+NODE_ENV=production
 
-# Cloudflare
+# Cloudflare (https://dash.cloudflare.com/profile/api-tokens)
 CLOUDFLARE_EMAIL=
 CLOUDFLARE_ZONE_ID=
-
-# https://dash.cloudflare.com/profile/api-tokens
 CLOUDFLARE_API_KEY=
 
-# https://www.abuseipdb.com/account/api
-ABUSEIPDB_API_KEY=
\ No newline at end of file
+# AbuseIPDB (https://www.abuseipdb.com/account/api)
+ABUSEIPDB_API_KEY=
+
+# API key for api.sefinek.net. Contact me to get it and contribute to the https://github.com/sefinek24/malicious-ip-addresses list.
+SEFINEK_API_SECRET=
\ No newline at end of file
diff --git a/config.js b/config.js
index d16b23c..b098a9f 100644
--- a/config.js
+++ b/config.js
@@ -17,13 +17,10 @@ const SUCCESS_COOLDOWN_MS = 2 * 1000; // 2s
 // This ensures that WAF violations originating from your IP address are not reported to AbuseIPDB.
 const IP_REFRESH_INTERVAL = 9 * 60 * 1000; // 9m
 
-// Report IP addresses to api.sefinek.net to support the development of the repository: https://github.com/sefinek24/malicious-ip-addresses.
+// Report IP addresses to api.sefinek.net to support the development of the repository: https://github.com/sefinek24/malicious-ip-addresses
 const REPORT_TO_SEFINEK_API = true;
 
-// API key for api.sefinek.net. Contact me to get it and contribute to the sefinek24/malicious-ip-addresses list.
-const SEFINEK_API_SECRET = 'keyboardcat';
-
 // How often should logs (reported_ips.csv) be analyzed and sent to Sefinek API?
-const SEFINEK_API_INTERVAL = process.env.NODE_ENV === 'production' ? 60 * 60 * 1000 : 2 * 1000;
+const SEFINEK_API_INTERVAL = process.env.NODE_ENV === 'production' ? 60 * 60 * 1000 : 4 * 1000;
 
-module.exports = { CYCLE_INTERVAL, REPORTED_IP_COOLDOWN_MS, MAX_URL_LENGTH, SUCCESS_COOLDOWN_MS, IP_REFRESH_INTERVAL, REPORT_TO_SEFINEK_API, SEFINEK_API_SECRET, SEFINEK_API_INTERVAL };
\ No newline at end of file
+module.exports = { CYCLE_INTERVAL, REPORTED_IP_COOLDOWN_MS, MAX_URL_LENGTH, SUCCESS_COOLDOWN_MS, IP_REFRESH_INTERVAL, REPORT_TO_SEFINEK_API, SEFINEK_API_INTERVAL };
\ No newline at end of file
diff --git a/index.js b/index.js
index 22e02b3..cc19990 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,7 @@
 require('dotenv').config();
 
 const { axios, moduleVersion } = require('./services/axios.js');
-const { CYCLE_INTERVAL, REPORTED_IP_COOLDOWN_MS, MAX_URL_LENGTH, SUCCESS_COOLDOWN_MS, IP_REFRESH_INTERVAL, REPORT_TO_SEFINEK_API, SEFINEK_API_SECRET, SEFINEK_API_INTERVAL } = require('./config.js');
+const { CYCLE_INTERVAL, REPORTED_IP_COOLDOWN_MS, MAX_URL_LENGTH, SUCCESS_COOLDOWN_MS, SEFINEK_API_INTERVAL } = require('./config.js');
 const PAYLOAD = require('./scripts/payload.js');
 const generateComment = require('./scripts/generateComment.js');
 const SefinekAPI = require('./scripts/sefinekAPI.js');
diff --git a/scripts/sefinekAPI.js b/scripts/sefinekAPI.js
index f8dc2cc..2f5db4e 100644
--- a/scripts/sefinekAPI.js
+++ b/scripts/sefinekAPI.js
@@ -9,14 +9,13 @@ module.exports = async () => {
 	if (reportedIPs.length === 0) return log('info', 'No IPs with action "Reported" and SefinekAPI false to send to Sefinek API');
 
 	const uniqueLogs = reportedIPs.reduce((acc, ip) => {
-		if (!acc.seen.has(ip.ip)) {
-			acc.seen.add(ip.ip);
-			acc.logs.push(ip);
-		}
+		if (acc.seen.has(ip.ip)) return acc;
+		acc.seen.add(ip.ip);
+		acc.logs.push(ip);
 		return acc;
 	}, { seen: new Set(), logs: [] }).logs;
 
-	if (uniqueLogs.length === 0) return log('info', 'No unique IPs to send to Sefinek API');
+	if (!uniqueLogs?.length) return log('info', 'No unique IPs to send to Sefinek API');
 
 	try {
 		const res = await axios.post(SEFINEK_API_URL, {
@@ -28,6 +27,8 @@ module.exports = async () => {
 				action: ip.action,
 				country: ip.country
 			}))
+		}, {
+			headers: { 'Authorization': process.env.SEFINEK_API_SECRET }
 		});
 
 		log('info', `Successfully sent ${res.data.count} logs to Sefinek API. Status: ${res.status}`);