May 19, 2025
When you think about major cybersecurity risks in your workplace, you might immediately point to phishing emails, malware, or weak passwords. But did you know that your office printer—that quiet device in the corner—could be one of the most overlooked security vulnerabilities in your entire network?
It may sound surprising, but cybercriminals actively target printers. Many companies underestimate the threat these devices pose—often until a breach occurs. In 2020, Cybernews conducted a "Printer Hack Experiment," revealing that out of 50,000 printers tested, 56% were successfully hacked. That's nearly 28,000 compromised units—highlighting how businesses often neglect this seemingly harmless equipment.
Why Are Printers Such a Prime Target?
Because printers hold a treasure trove of sensitive information. They handle everything from payroll and contracts to confidential client data, yet many organizations leave them vulnerable to cyberattacks.
Here's what can happen if a hacker gains control of your printer:
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Stored sensitive data at risk - Every print, scan, or copy job can be saved digitally. Many printers feature built-in hard drives that archive years of documents, including payroll, contracts, and employee files. A breach could allow hackers to steal or reproduce these documents without your knowledge.
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Default passwords invite attacks - Printers often come with default admin credentials like "admin/admin" or "123456." Many companies neglect to change these, making it effortless for cybercriminals to seize control.
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Gateway to your network - Connected to your WiFi and corporate network, compromised printers can serve as entry points for malware, ransomware, or data theft from other devices.
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Unprotected print job interception - Without encryption, hackers can intercept documents before they print, exposing sensitive contracts, legal papers, or medical records.
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Remote spying capabilities - Many modern printers have built-in storage and scan-to-email functions. If hacked, attackers can remotely access scanned documents, emails, and stored files.
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Outdated firmware vulnerabilities - Printers require regular security updates. Unfortunately, many businesses fail to update their printer firmware, leaving them exposed to known exploits.
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Data risks from discarded printers - Improperly disposed printers can still contain sensitive data. Cybercriminals can extract this residual information, leading to security breaches and potential legal consequences. It's essential to securely wipe printer storage before disposal.
Essential Steps to Shield Your Printers from Cyber Threats
Now that you understand the risks, here's what you should do right away:
- Change Default Passwords - Immediately replace factory-set login credentials with strong, unique passwords just as you would for your email or banking accounts.
- Keep Firmware Updated - Manufacturers issue security patches for a reason. Regularly check your printer settings for updates or have your IT team handle this.
- Encrypt Printing - Activate Secure Print and end-to-end encryption features to block hackers from intercepting print jobs.
- Control Print Access - Implement access controls to restrict printing to authorized personnel. Use PIN codes for sensitive documents and provide a guest option if needed.
- Regularly Clear Stored Data - Delete stored print jobs manually if possible. Ensure printer hard drives are encrypted and securely wiped or destroyed before replacing or discarding printers.
- Protect with Firewalls - Just like your computers, printers should be safeguarded by a firewall to block unauthorized access.
- Monitor Printer Usage - Have your IT team track printer logs to detect unusual activity, unauthorized access attempts, or suspicious print jobs.
Printers: More Than Just Office Tools—They're Cybersecurity Vulnerabilities
Many organizations overlook printer security because they see them as simple office devices. However, savvy cybercriminals exploit this blind spot, making printers an easy target.
If you're securing your computers but ignoring your printers, you're leaving a significant gap in your cybersecurity shield.
Wondering if your office printers are truly secure? Start with a FREE 15-Minute Discovery Call. We'll identify vulnerabilities and ensure your printers—and entire network—are fully protected.
Click here or give us a call at (925) 766-4005 to schedule your FREE 15-Minute Discovery Call today!