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Is Your Printer The Biggest Security Threat In Your Office?

May 19, 2025

When you think about the top cybersecurity threats in your workplace, phishing emails, malware, or weak passwords probably come to mind. But did you know that your office printer—that quiet machine in the corner—could be one of the most overlooked and dangerous vulnerabilities in your entire network?

It may sound surprising, but cybercriminals actively target printers. Unfortunately, most companies underestimate the security risks these devices pose—often until a breach happens. In 2020, Cybernews conducted their "Printer Hack Experiment." They tested 50,000 printers and successfully hacked 56% of them, forcing nearly 28,000 devices to print out warnings about printer security. This alarming figure highlights how easily businesses overlook these seemingly harmless machines.

Why Are Printers Such a Prime Target?

Because printers hold a treasure trove of sensitive information. From payroll and contracts to confidential client data, printers handle it all. Yet, many organizations leave them exposed and unprotected.

Here’s what could happen if a hacker gains control of your printer:

Stored sensitive data at risk - Every print, scan, or copy job can be saved digitally. Many printers include built-in hard drives that archive years of documents like payrolls, contracts, and employee files. If compromised, hackers can steal or reproduce these confidential files without your knowledge.

Default passwords make hacking effortless - Most printers ship with generic admin logins such as "admin/admin" or "123456." Many organizations neglect to change these, making it incredibly easy for attackers to seize control.

Gateway into your network - Connected to your WiFi and company network, compromised printers can serve as entry points for malware, ransomware, or data theft affecting other devices.

Intercepted print jobs - Without encryption, hackers can capture documents mid-transmission. This exposes sensitive contracts, legal papers, and medical records before they even reach the printer.

Remote spying capabilities - Modern printers often feature built-in storage and scan-to-email functions. If breached, attackers can remotely access scanned documents, emails, and stored data.

Outdated firmware vulnerabilities - Like any device, printers require regular security updates. Many businesses neglect to update firmware, leaving their devices susceptible to known exploits.

Data mining from discarded printers - Improperly discarded printers can be a goldmine for hackers. Residual data left on these devices can lead to serious security breaches and legal issues. It’s essential to wipe or destroy printer storage before disposal.

Essential Steps to Shield Your Printers From Hackers

Now that you understand the risks, take these immediate actions to secure your printers:

  1. Change Default Passwords - If your printer still uses factory default credentials, update them right away. Choose a strong, unique password similar to those protecting your email or bank accounts.

  2. Keep Firmware Up to Date - Manufacturers release security patches for a reason. Regularly check your printer settings for updates or have your IT team handle this.

  3. Encrypt Print Jobs - Activate Secure Print and end-to-end encryption features to block hackers from intercepting documents.

  4. Restrict Printing Access - Implement access controls to ensure only authorized personnel can send print jobs. Utilize PIN codes for sensitive documents and consider adding a guest printing option.

  5. Regularly Clear Stored Data - Some printers allow manual deletion of stored jobs. Ensure your printer’s hard drive is encrypted, and before disposal, wipe or destroy the storage device securely.

  6. Use a Firewall - Protect your printers with a firewall just like your computers to block unauthorized access.

  7. Monitor Printer Activity - If your IT team isn’t already, start tracking printer logs. Look out for unusual printing, remote access attempts, or unauthorized printing of sensitive files as warning signs.

Printers Are More Than Just Office Devices — They're Critical Security Concerns

Many companies overlook printer security simply because they see printers as harmless equipment. However, savvy cybercriminals target these weak points, knowing they’re often neglected.

If you’re securing your computers but ignoring your printers, you’re leaving a significant gap in your cybersecurity defenses.

Wondering if your office printers are truly secure? Start with a FREE 10-Minute Discovery Call—we’ll assess vulnerabilities and ensure your printers and entire network stay protected.

Click here or call us at (805) 295-8883 to schedule your FREE 10-Minute Discovery Call today!