Anti-Spyware

Why Trust Techopedia

What is Anti-Spyware?

Anti-spyware is a type of software that can be used to detect, isolate, or remove spyware from a computing device. Spyware is malicious software (malware) that monitors a user’s digital activities without their knowledge and collects personally identifiable information (PII) without their consent.

Advertisements

What is Anti-Spyware Definition & Use Cases

 Key Takeaways

  • Anti-spyware software can detect, quarantine, and/or remove software that spies on a user’s activities.
  • In the early days of the internet, before there were legal concerns about user privacy, marketers used spyware to target advertisements.
  • Because the excessive use of spyware created a poor user experience, vendors began offering dedicated anti-spyware applications.
  • Early anti-spyware apps were primarily standalone, signature-based applications.
  • Today, anti-spyware features are rolled into antivirus programs that use heuristics as well as signatures to detect malicious code. An integrated approach provides more comprehensive protection against a wider range of threats.

What is Anti-Spyware Software?

Anti-spyware software is computer code that can be used to prevent, detect, and remediate suspected spyware infections.

The term spyware is a portmanteau for spying software. If a user suspects spyware has been installed on their computing device, they can use anti-spyware software or antivirus software with anti-spyware features to either quarantine the malicious code or remove it from the device permanently.

Anti-Spyware vs. Antivirus

Anti-spyware software was originally developed to address online privacy concerns in the early 2000s. In contrast, antivirus software was developed to combat computer worms, viruses, and trojans in the 1980s and 1990s.

Over time, the lines between the two types of cybersecurity software have blurred. Today, for example, Spybot’s anti-spyware software and SUPERAntiSpyware apps can be obtained as free downloads, but both vendors recommend that users purchase and use one of their integrated security suites for more secure protection against evolving malware threats.

How Anti-Spyware Works

Users can either manually scan a system for spyware or allow antivirus software to run in the background and automatically block spyware attempts as they occur.

Anti-spyware works by using signature-based detection and/or heuristic analysis. Signature-based detection compares files on the device with a database of known spyware signatures.

Heuristic analysis monitors the behavior of files to identify unusual activity. This method helps detect new or unknown spyware that may not be in the signature database yet.

How Anti-Spyware Software Works

Types of Anti-Spyware

Anti-spyware tools can be categorized by whether they are standalone apps, operating system utilities, browser extensions, or features in an integrated cybersecurity suite.

Operating system utilities like Windows Defender and browser extensions like SUPERAntiSpyware Ext can provide a convenient first line of defense against spyware threats.

In contrast, integrated security suites, like Norton 360 or McAfee Total Protection, include anti-spyware features as part of a comprehensive approach to cybersecurity.

Types of Anti-Spyware Software

Standalone anti-spyware softwareIntegrated anti-spyware solutionsBrowser-based anti-spywareMobile anti-spyware apps

Description: Specifically designed to prevent, detect, isolate, and remove spyware. May only allow users to manually initiate scans.

Use case: Can be useful for manual checks when a spyware infection is suspected.

Description: A comprehensive antivirus or anti-malware security suite that includes anti-spyware features.

Use case: Provides integrated protection against a wide variety of cyberthreats, including spyware.

Description: Designed to detect and block spyware-related threats on websites.

Use case: Users should be cautious of anti-spyware browser extensions. Some extensions have been banned because they actually collected user information and sold it.

Description: Designed to protect devices from mobile-specific spyware threats.

Use case: Some anti-spyware features for mobile devices can protect sensitive data stored in mobile apps.

      Anti-Spyware for Mobile Devices

      Mobile-specific spyware threats are designed to exploit the unique features and vulnerabilities of mobile devices. To mitigate the risk of spyware infections, users should regularly update their mobile device operating systems (OSes) and only download apps from official app stores.

      Business users should also consider installing antivirus software on any personal mobile devices they use at work.

      Ideally, the software should be able to proactively address the following common mobile spyware threats:

      Spyware apps
      These are malicious mobile apps disguised as legitimate apps. Once installed, they can track a user’s location, monitor calls and messages, access photos and files, or activate the device’s microphone and digital camera.
      Stalkerware
      This subset of spyware is often used to digitally monitor personal relationships. Stalkerware can report a user’s location and online activities.
      Keyloggers
      Mobile-specific keyloggers record everything typed on a device, including login credentials and personal communication.
      SMS and call interceptors
      These spyware tools can intercept SMS messages and phone call logs.
      Adware with spyware capabilities
      Some adware for mobile devices also has spyware functions that will collect data about a user’s browsing habits and personal information. Typically, the user inadvertently permits this by agreeing to the adware’s end user license agreement (EULA) by reading it.
      Network-based spyware
      This type of threat exploits vulnerabilities in public Wi-Fi to intercept data transmitted from mobile devices.
      Remote administration trojan (RAT)
      This type of spyware tool is typically bundled with a legitimate program to provide the attacker with full control over a mobile device.

      5 Tips for Using Anti-Spyware Software

      It’s possible to maximize the effectiveness of anti-spyware software features by following these five tips:

      1. When purchasing anti-malware software, look for apps that have real-time spyware removal features. Make sure the features are turned on and are set to run automatically so they can proactively provide defense against both known and new spyware threats.
      2. Always select anti-spyware software for Android and iOS mobile devices from well-known, trusted developers. Research reviews and expert recommendations to ensure the software is reliable and effective. Avoid downloading tools from unknown sources, as some may themselves contain spyware or other types of malware.
      3. Regularly update each computing device’s operating system (OS) and antivirus software. Updates will help ensure utility programs and software features have the latest spyware definitions and protection mechanisms.
      4. Always use strong, unique passwords and enable multi-factor authentication (MFA) whenever possible. The goal is to prevent malicious software from being downloaded and installed without the user’s knowledge and consent.
      5. Be cautious when using free software. Freeware and adware programs are often bundled with spyware or other unwanted programs, so be sure to read the EULA carefully.

      Anti-Spyware Pros & Cons

      While anti-spyware software features can help maintain user privacy, they are most effective when used as part of a broader cybersecurity strategy.

      Pros
      • Today, anti-spyware software is often bundled with other types of anti-malware to prevent malicious actors from monitoring user activity and collecting personal information.
      • Many integrated cybersecurity tools can use AI heuristics and anomaly detection to proactively prevent spyware code from executing.
      Cons
      • In 2023, security researcher Patrick Wardle discovered that several free anti-spyware apps were actually collecting and transmitting sensitive user data without the user’s knowledge or consent.
      • Cybersecurity suites that have anti-spyware features often require a subscription or one-time purchase. This can be a drawback for budget-conscious users.

      The Bottom Line

      The definition of anti-spyware has evolved over time in response to the changing nature of online threats and user expectations. Today, comprehensive cybersecurity suites integrate anti-spyware features to address multiple types of known and emerging privacy threats.

      FAQs

      What is anti-spyware in simple terms?

      What is an example of anti-spyware?

      What is the difference between an antivirus and an anti-spyware?

      What does anti-spyware do?

      Do I need anti-spyware?

      Advertisements

      Related Terms

      Margaret Rouse
      Technology Expert
      Margaret Rouse
      Technology Expert

      Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.