How to secure your home printer so it does not expose your whole network

Home printers have quietly turned into full computers on the network, with Wi-Fi, cloud connections and internal storage. Yet they are often left with default passwords and outdated software, making them an easy entry point for attackers.

Taking an hour to review a few settings on your printer can remove many of the easiest attack paths. The steps are straightforward and do not require advanced technical skills.

Why printers matter for home cybersecurity

Modern printers and multifunction devices can store copies of recent documents, remember Wi-Fi details and connect to mobile apps and cloud services. If someone gains access to your printer, they may be able to see what you print or use it as a stepping stone into other devices on your network.

Attackers sometimes scan the internet for printers with open ports or default passwords. In shared buildings or dense neighborhoods, a poorly configured wireless printer can also be reached by people nearby. Treat your printer with the same care as a laptop or phone, not as a simple household appliance.

Start with the basics: location, cables and Wi-Fi

Place your printer where strangers cannot easily see the display or pick up prints, especially if you often print financial, medical or work documents. In shared apartments, agree on a simple rule that sensitive pages are collected immediately after printing.

If your printer supports a wired Ethernet connection and it is practical to use one, a cable is usually more secure and stable than Wi-Fi. If you must use Wi-Fi, connect only to your main home network or a dedicated secure segment, never to public or guest networks that many people can access.

Change default passwords and disable unused accounts

Many printers ship with default administrator usernames and passwords that are easy to find online. Log in to your printer’s web interface or settings panel and change the admin password to something unique, long and hard to guess. Store it in a password manager or written in a safe place.

Check whether the device has additional user accounts, remote admin logins or web portals that you never use. Disable or remove them when possible. The fewer ways there are to sign in, the fewer chances someone has to tamper with your printer.

Update the printer’s firmware regularly

Printer makers release firmware updates to fix security flaws and improve performance. Unfortunately, many home users never install them. Visit the support section of the manufacturer’s website, search for your exact model and download any recommended updates.

Some devices can check for updates automatically from the settings menu. If auto update is available, enable it and still plan to verify a few times per year that the printer is running the latest version. Doing this after major security news about your brand or model is also a good idea.

Lock down network and remote access features

Printers often support printing from the internet, remote configuration and protocols that are mainly needed in offices. At home these features usually add risk without much benefit. In your printer’s network settings, disable anything labelled “remote access”, “cloud management” or “internet printing” unless you truly rely on it.

Turn off legacy services such as FTP, Telnet, unsecured web access (HTTP without encryption) or other protocols you do not recognize. Where possible, require encrypted connections (HTTPS or TLS) for administration pages. If you are unsure about a setting, search the exact option name together with your printer model on the manufacturer’s site.

Secure mobile and cloud printing

Many people now print from phones or tablets using apps or services like AirPrint, Google’s printing options or the printer vendor’s own cloud. Review which accounts are linked to your printer in these apps and remove any you no longer use, especially old work or shared logins.

If the device offers a unique email address that allows printing by sending documents to it, restrict who can use it. In the settings, choose “only allowed senders” or disable email printing if you never use it. Otherwise, anyone who discovers that address could send unwanted or malicious files to the printer.

Control guest and family access

In households with guests or children, it is useful to separate who can print and who can change important settings. Where your printer offers user roles or PIN codes for configuration, protect the settings menu so casual users cannot change network options or reset passwords.

If visitors occasionally need to print, consider letting them use your Wi-Fi guest network and a shared print method that does not give them access to the printer’s admin pages. Check from time to time that no unfamiliar devices remain paired in the printer’s connection list.

Handle stored data and end-of-life securely

Some printers and multifunction devices keep logs of recent jobs or even store documents on internal memory. In the settings, look for options to clear print history, delete stored jobs and wipe or encrypt internal storage. Enable automatic deletion of completed jobs if the option exists.

When you sell, give away or recycle a printer, always perform a factory reset and, if supported, a secure data wipe. This helps ensure that your Wi-Fi password, address details and printed documents are not passed on to the next person. For expensive or business-grade devices, ask a professional technician or the manufacturer’s support for detailed wipe instructions.

When to seek professional help

If you suspect your printer has been misused, for example if it prints unknown pages, appears in logs at strange times or your router flags it as a problem device, disconnect it from the network immediately. Power it off, then consult the manufacturer’s support pages or customer service.

In more serious cases, such as signs that work data or sensitive documents may have leaked, speak with your employer’s IT or a qualified cybersecurity professional. They can help check your wider home network and advise on additional steps beyond a simple reset.