Passwords, biometrics, antivirus software, and other security tools can help protect your information from digital threats. But there is another security risk that is much more low-tech: someone simply looking at your screen.
This is known as visual hacking.
Visual hacking happens when someone views or captures sensitive information without authorization. It can happen in an office, coffee shop, airport, airplane, or any other shared environment where someone can see your screen or documents.
The good news is that a few simple habits and the right privacy tools can help reduce your risk.
What is visual hacking?
Visual hacking is the unauthorized viewing or capturing of sensitive information that is visible on a screen, document, or other physical medium.
For example, someone sitting behind you could look at your laptop screen while you are:
- Entering a password
- Reviewing customer information
- Viewing financial records
- Reading private email
- Working with confidential business documents
- Accessing account information
Visual hacking does not require malware, hacking software, or access to your network. In some cases, someone only needs a clear view of your screen.
Where can visual hacking happen?
Visual hacking can happen anywhere other people can see your screen or documents.
Common locations include:
- Coffee shops and restaurants
- Airports and airplanes
- Hotels and conference centers
- Libraries and other public spaces
- Open-plan offices
- Shared workspaces
- Public transportation
Remote and hybrid work can increase exposure because people may be working with sensitive information outside of traditional office environments.
Why is visual hacking a security risk?
The information visible on your screen may be enough to create a privacy or security problem.
Depending on what you are working with, a visual hacker could see:
- Personally identifiable information (PII)
- Payment or financial information
- Account numbers
- Passwords or authentication codes
- Customer information
- Internal business information
- Confidential documents
A person does not necessarily need to steal a device or gain access to a company's network to obtain this information. Simply viewing sensitive information can create a security risk.
Who is vulnerable to visual hacking?
Anyone who works with sensitive information can be vulnerable to visual hacking.
This includes employees, business owners, students, travelers, remote workers, and anyone who uses a computer or mobile device in a shared environment.
The risk is particularly important for people who regularly work with confidential information outside of private offices.
How can you prevent visual hacking?
You can reduce the risk of visual hacking with a combination of good habits and privacy technology.
1. Be aware of your surroundings
Before opening sensitive information, look around your workspace.
If someone can easily see your screen, consider moving to a more private location or waiting until you have greater privacy.
Pay particular attention when working in crowded areas such as airplanes, coffee shops, and shared workspaces.
2. Position your screen carefully
Whenever possible, position your computer so that people passing by or sitting nearby cannot easily see the display.
Avoid placing your screen directly in front of an open doorway, high-traffic area, or other location where people can view it from behind or from the side.
3. Lock your screen when you step away
Don't leave sensitive information visible when you are away from your computer.
Use your device's screen-lock feature whenever you step away, even for a short period.
4. Use a privacy screen when appropriate
A privacy screen can limit the viewing angle of a laptop or monitor, making information harder to see from the side.
Some HP notebooks include HP Sure View, an integrated privacy screen technology designed to help protect on-screen information from people viewing the display from an angle.
For devices without an integrated privacy screen, an external privacy filter can provide another option.
5. Be careful with printed documents
Visual hacking is not limited to computer screens.
Sensitive information can also be exposed through printed documents left unattended on desks, printers, conference room tables, or other shared areas.
Collect documents containing sensitive information promptly and dispose of them securely when they are no longer needed.
6. Create a visual privacy policy for your organization
Businesses should include visual privacy as part of their overall security awareness program.
Employees should understand when they are handling sensitive information and how to protect it when working in public or shared environments.
Organizations can also evaluate workspaces to identify areas where confidential information may be visible to visitors, contractors, or other employees.
Does a privacy screen completely prevent visual hacking?
No. A privacy screen can make information harder to see from certain viewing angles, but it is only one part of a broader security strategy.
Users should still be aware of their surroundings, lock their devices when unattended, and follow their organization's security policies.
Visual privacy works best as one layer of a larger approach to protecting sensitive information.
Visual hacking FAQs
Is visual hacking the same as shoulder surfing?
They are closely related. Shoulder surfing generally refers to someone looking over another person's shoulder to obtain information, such as a password or PIN. Visual hacking is a broader term that includes unauthorized viewing or capturing of sensitive information from screens, documents, and other visible sources.
Can visual hacking happen remotely?
Traditional visual hacking requires someone to physically see the information. However, sensitive information can also be exposed through screenshots, photographs, video calls, shared screens, or other situations where information becomes visible to an unauthorized person.
How can I protect my laptop screen in public?
Position your screen away from other people, avoid displaying sensitive information when you cannot control who can see it, lock your device when you step away, and consider using a privacy screen or integrated privacy technology.
Is visual hacking a cybersecurity threat?
Yes. Visual hacking is a physical privacy and security risk that can expose sensitive information without requiring someone to compromise a device or network.
The bottom line
Strong digital security is important, but protecting information also means thinking about who can physically see it.
Visual hacking can happen whenever sensitive information is displayed in a place where unauthorized people can view it. Being aware of your surroundings, positioning your screen carefully, locking your device, protecting physical documents, and using privacy screen technology can all help keep sensitive information out of sight.
