Can My Home Wi-Fi Be Hacked? How to Check Your Router's Security
Collection Security 2026.07.26

Can My Home Wi-Fi Be Hacked? How to Check Your Router's Security

A step-by-step guide to check your admin password, firmware, encryption, and guest network

Most of the smartphones, laptops, TVs, and home cameras in your house connect to the internet through a single router. If the router settings remain at the old default values, even well-managed individual devices can expose the entire network to unnecessary risks. However, there's no need to jump to conclusions just because you notice an unfamiliar connection.

It's easy to understand the checks if you start with the admin page password, wireless encryption method, firmware, and connected device list in that order. Check whether the initial password at the bottom of the device is the same as your current settings, and look for the latest firmware supported by the manufacturer and whether WPA2 or WPA3 is in use.

If you're not using features for convenience like WPS, remote management, or UPnP, consider turning them off. However, since IPTV, game consoles, and IoT devices may require specific functions, make changes gradually. Change one setting at a time and check the normal connection to easily identify the cause when issues arise.

This list is not a way to attack specific routers but a sequence to check the basic defensive status of home networks. If you are using equipment provided by your ISP, check the customer service guidance before resetting it directly, and do not change settings for company, lodging, or public Wi-Fi since you lack management authority.

Change Router Admin Password

Changing the router admin password is a practical product/service or official check item that involves replacing the default admin account with a unique password. To avoid unofficial apps and sales pages with similar names, check both the operating entity and the official domain.

Before applying it after installing new routers or immediately after reset, first review the compatibility with the current devices and accounts, as well as backup and recovery methods. The menu or provided features may vary according to version and plan, so evaluate based on the latest official guidance.

Set the Wi-Fi access password and admin password differently. This item only applies to devices that you own or for which you have explicit management authority, and should not be used to test someone else's account, device, or network.

운영 주체 CISA 주요 용도 출고 기본 관리자 계정을 고유한 암호로 교체 확인 시점 새 공유기를 설치했거나 초기화한 직후 분류 관리자 계정 주의사항 와이파이 접속 암호와 관리자 암호를 서로 다르게 설정한다.

Router Firmware Update

Router firmware update is a practical product/service or official check item that applies security fixes and feature improvements distributed by the manufacturer. To avoid unofficial apps and sales pages with similar names, check both the operating entity and the official domain.

Before applying it immediately after installation or when there is a manufacturer security notice, first review the compatibility with the current devices and accounts, as well as backup and recovery methods. The menu or provided features may vary according to version and plan, so evaluate based on the latest official guidance.

Only use files for the correct hardware version and do not turn off the power during the update. This item only applies to devices that you own or for which you have explicit management authority, and should not be used to test someone else's account, device, or network.

운영 주체 TP-Link 주요 용도 제조사가 배포한 보안 수정과 기능 개선을 적용 확인 시점 설치 직후와 제조사 보안 공지가 있을 때 분류 펌웨어 주의사항 정확한 하드웨어 버전용 파일만 사용하고 업데이트 중 전원을 끄지 않는다.

WPA2·WPA3 Encryption Check

Check WPA2 and WPA3 Encryption

Checking WPA2 and WPA3 encryption is a practical product/service or official check item that involves choosing the latest wireless encryption methods within the supported device range. To avoid unofficial apps and sales pages with similar names, check both the operating entity and the official domain.

Before applying it when connecting new devices or updating old security methods, first review the compatibility with the current devices and accounts, as well as backup and recovery methods. The menu or provided features may vary according to version and plan, so evaluate based on the latest official guidance.

Check for compatibility with older devices and avoid using WEP or open networks. This item only applies to devices that you own or for which you have explicit management authority, and should not be used to test someone else's account, device, or network.

운영 주체 NETGEAR 주요 용도 지원 기기 범위에서 최신 무선 암호화 방식을 선택 확인 시점 새 기기를 연결하거나 오래된 보안 방식을 정리할 때 분류 무선 암호화 주의사항 구형 기기 호환성을 확인하며 WEP나 개방형 네트워크 사용은 피한다.

WPS Function Check

Check WPS Functionality

Checking WPS functionality is a practical product/service or official check item that confirms the need for simple connection features via button or PIN. To avoid unofficial apps and sales pages with similar names, check both the operating entity and the official domain.

If you are not using WPS or if the setting paths are exposed, before applying it, first review the compatibility with the current devices and accounts, as well as backup and recovery methods. The menu or provided features may vary according to version and plan, so evaluate based on the latest official guidance.

If not needed, consider deactivating it, but verify the impact on connected devices. This item only applies to devices that you own or for which you have explicit management authority, and should not be used to test someone else's account, device, or network.

운영 주체 ASUS 주요 용도 버튼·PIN 방식의 간편 연결 기능 필요 여부를 확인 확인 시점 WPS를 사용하지 않거나 설정 경로가 노출될 때 분류 간편 연결 주의사항 사용하지 않는다면 비활성화를 검토하되 연결된 기기 영향을 확인한다.

Guest Network Isolation

Separate Guest Network

Separating the guest network is a practical product/service or official check item that utilizes separation for visitors and some smart devices from the main user network. To avoid unofficial apps and sales pages with similar names, check both the operating entity and the official domain.

When enabling guest access or if there are many IoT devices, before applying it, first review the compatibility with the current devices and accounts, as well as backup and recovery methods. The menu or provided features may vary according to version and plan, so evaluate based on the latest official guidance.

Check whether the range of internal device access blocking differs by model. This item only applies to devices that you own or for which you have explicit management authority, and should not be used to test someone else's account, device, or network.

운영 주체 Google Nest 주요 용도 방문자와 일부 스마트 기기를 주 사용망과 분리 확인 시점 손님용 접속이나 사물인터넷 기기가 많을 때 분류 네트워크 분리 주의사항 게스트망의 내부 기기 접근 차단 범위가 모델별로 다른지 확인한다.

Remote Management Features Check

Check Remote Management Feature

Checking the remote management feature is a practical product/service or official check item that assesses the ability to access router settings from the outside internet. To avoid unofficial apps and sales pages with similar names, check both the operating entity and the official domain.

If you do not use the management feature when away from home, before applying it, first review the compatibility with the current devices and accounts, as well as backup and recovery methods. The menu or provided features may vary according to version and plan, so evaluate based on the latest official guidance.

If not needed, turn it off, and if used, set strong authentication and access ranges. This item only applies to devices that you own or for which you have explicit management authority, and should not be used to test someone else's account, device, or network.

운영 주체 NETGEAR 주요 용도 외부 인터넷에서 공유기 설정에 접근하는 기능을 점검 확인 시점 집 밖에서 관리 기능을 사용하지 않을 때 분류 원격 관리 주의사항 필요하지 않으면 끄고 사용한다면 강한 인증과 접근 범위를 설정한다.

Connected Devices List Check

Check Connected Device List

Checking the connected device list is a practical product/service or official check item that utilizes matching the names and manufacturers of devices currently connected to the router. To avoid unofficial apps and sales pages with similar names, check both the operating entity and the official domain.

If you suspect a slowdown in speed or unknown devices connecting, before applying it, first review the compatibility with the current devices and accounts, as well as backup and recovery methods. The menu or provided features may vary according to version and plan, so evaluate based on the latest official guidance.

Do not conclude intrusion solely based on device names; cross-check with your owned devices in order. This item only applies to devices that you own or for which you have explicit management authority, and should not be used to test someone else's account, device, or network.

운영 주체 ASUS 주요 용도 현재 공유기에 연결된 기기 이름과 제조사를 대조 확인 시점 속도 저하나 모르는 기기 접속이 의심될 때 분류 접속 기기 주의사항 기기 이름만으로 침입을 단정하지 말고 보유 장비와 차례로 대조한다.

Router Settings Backup

Backup Router Settings

Backing up router settings is a practical product/service or official check item that exports normally functioning settings to prepare for recovery. To avoid unofficial apps and sales pages with similar names, check both the operating entity and the official domain.

Before making large-scale setting changes or resets, first review the compatibility with the current devices and accounts, as well as backup and recovery methods. The menu or provided features may vary according to version and plan, so evaluate based on the latest official guidance.

Backup files may contain sensitive settings, so do not share them externally. This item only applies to devices that you own or for which you have explicit management authority, and should not be used to test someone else's account, device, or network.

운영 주체 TP-Link 주요 용도 정상 동작하는 설정을 공식 기능으로 내보내 복구에 대비 확인 시점 대규모 설정 변경이나 초기화 전에 분류 설정 복구 주의사항 백업 파일에는 민감한 설정이 포함될 수 있으므로 외부에 공유하지 않는다.

Router security starts with changing default values and keeping updates rather than turning on all complex features. Make admin and Wi-Fi passwords different, and switch to WPA2 or WPA3 for older encryption methods within the supported range.

The list of connected devices may show names that are hard to recognize, such as TVs, printers, or lights. Rather than immediately judging unknown items as intruders, check their MAC addresses and manufacturers, and see if they disappear from the list when powered off.

Guest networks can help separate visitors’ devices from smart home devices connected to your main PC. However, the way internal networks are blocked can vary by model, so don’t trust the term ‘guest network’ blindly and check the official explanation. If remote management is absolutely necessary, also check whether multi-factor authentication and access account management are supported.

Once you finish the checks, simply record your router model, firmware version, and the date of changes. Devices that no longer receive security updates due to the manufacturer's end of support may need to be replaced. After this, you can maintain a basic status by checking the connected devices and updates quarterly, and if issues repeat, seek support from your ISP or manufacturer.

한눈에 보기 8개
Change Router Admin Password
CISA · 출고 기본 관리자 계정을 고유한 암호로 교체 · 새 공유기를 설치했거나 초기화한 직후 · 관리자 계정 · 와이파이 접속 암호와 관리자 암호를 서로 다르게 설정한다.
Router Firmware Update
TP-Link · 제조사가 배포한 보안 수정과 기능 개선을 적용 · 설치 직후와 제조사 보안 공지가 있을 때 · 펌웨어 · 정확한 하드웨어 버전용 파일만 사용하고 업데이트 중 전원을 끄지 않는다.
WPA2·WPA3 Encryption Check
NETGEAR · 지원 기기 범위에서 최신 무선 암호화 방식을 선택 · 새 기기를 연결하거나 오래된 보안 방식을 정리할 때 · 무선 암호화 · 구형 기기 호환성을 확인하며 WEP나 개방형 네트워크 사용은 피한다.
WPS Function Check
ASUS · 버튼·PIN 방식의 간편 연결 기능 필요 여부를 확인 · WPS를 사용하지 않거나 설정 경로가 노출될 때 · 간편 연결 · 사용하지 않는다면 비활성화를 검토하되 연결된 기기 영향을 확인한다.
Guest Network Isolation
Google Nest · 방문자와 일부 스마트 기기를 주 사용망과 분리 · 손님용 접속이나 사물인터넷 기기가 많을 때 · 네트워크 분리 · 게스트망의 내부 기기 접근 차단 범위가 모델별로 다른지 확인한다.
Remote Management Features Check
NETGEAR · 외부 인터넷에서 공유기 설정에 접근하는 기능을 점검 · 집 밖에서 관리 기능을 사용하지 않을 때 · 원격 관리 · 필요하지 않으면 끄고 사용한다면 강한 인증과 접근 범위를 설정한다.
Connected Devices List Check
ASUS · 현재 공유기에 연결된 기기 이름과 제조사를 대조 · 속도 저하나 모르는 기기 접속이 의심될 때 · 접속 기기 · 기기 이름만으로 침입을 단정하지 말고 보유 장비와 차례로 대조한다.
Router Settings Backup
TP-Link · 정상 동작하는 설정을 공식 기능으로 내보내 복구에 대비 · 대규모 설정 변경이나 초기화 전에 · 설정 복구 · 백업 파일에는 민감한 설정이 포함될 수 있으므로 외부에 공유하지 않는다.

이 포스팅은 쿠팡 파트너스 활동의 일환으로, 이에 따른 일정액의 수수료를 제공받습니다.

댓글 0

로그인 후 댓글을 작성할 수 있습니다.

첫 댓글을 남겨보세요.

이런 리스트는 어때요?

이런 리스트도 추천해요

🎲

여기서 멈추기엔 아쉽잖아?

다음에 뭘 볼지 고민하는 시간이 제일 아까워.
주사위가 대신 골라줄게 — 무슨 리스트가 튀어나올지는 굴려봐야 알지.
안 누르면… 평생 궁금하지 않겠어? 👀

All menu
Login required
Log in
Categories
Language
Display mode

Drum roll… picking a list!

모하지
Use Mohazi as an app
Open it from your home screen and browse faster.
On iPhone, tap the Share button at the bottom of Safari, then choose “Add to Home Screen” to use it like an app.