Home » Spyware: What It Is and How to Protect Yourself

Spyware: What It Is and How to Protect Yourself

August 01, 2022 • César Daniel Barreto

Do you know what spyware is? Chances are, you’ve been infected by it at some point in your online life. Spyware is malware that installs itself on devices without the user’s knowledge and can steal sensitive information like passwords, credit card numbers, and internet usage data. It can also be used to track your online activity for advertising purposes. If you’re not careful, spyware can cause a lot of damage to your computer and your privacy. This article will tell you everything you need to know about spyware and how to protect yourself from it.

What is spyware?

Spyware is software that illegally collects personal or corporate information. It does this without the user’s consent by secretly running on their computer. Spyware can often be found doing things like advertising, gathering private information, and changing your computer’s settings without you knowing.

There are different types of spyware. The most common types are adware, tracking cookies, system monitors, and Trojans. The worst-case scenario is when a computer comes with spyware that was already installed on it. Another possibility is that a program you download from the internet might be infected after you save it to your hard drive.

What does spyware do?

Spyware is installed on user devices to track their activities and visited websites. This is done to keep track of user activity, gather login and password information, and look for sensitive data. Some spyware can also install additional software on a user’s device so that the attacker can make changes. Spyware usually takes three stages, from installation to selling or sending stolen information:

  1. Infiltrate: The spyware must first get on your device. It can do this by bundling with other software you download, or a third-party app might install it.
  2. Steal information: The spyware will collect personal data like passwords, login information, credit card numbers, and internet usage data.
  3. Capture: Once the spyware has all the information it needs, it will send it to a remote server where the attacker can access it.

How spyware contaminates your devices

Malicious spyware tries to disguise itself to stay hidden and operate without being detected. It often does this by hiding in downloads or websites that seem safe. Spyware may enter your computer through vulnerabilities in your system, harmful programs that look like genuine applications, or counterfeit websites and apps created for this specific purpose.

When you download and install a program, be careful that it doesn’t bundle other unwanted software with it. This extra software, called bundleware or bundled software packages, can contain malware. Malware is a type of software that can harm your computer. It might hide, or the program you chose might tell you there is spyware on your computer and offer to remove it for you. The spyware will start collecting your personal information if you don’t act immediately.

Some spyware can change your computer’s settings without you knowing. This might include installing new software, changing your homepage, or redirecting you to fake websites. These changes can make it harder for you to use your computer and risk downloading more spyware.

Types of spyware

Spyware is usually created for a particular purpose. The following are some examples of the most common types of spyware.


Adware is malware that generates revenue for its developer by displaying advertising on your computer. Adware is any program that shows commercials, whether good or bad. Spyware that also acts as adware may do so; these are harmful applications that present misleading advertisements, such as blinking pop-up windows, large banners, and full-screen auto-play commercials in the browser.

Adware can be downloaded and installed on a computer without the user’s knowledge. It’s main goal is to make money by displaying advertising on the victim’s computer. Some adware variants can redirect you to adult sites when you visit a website, making surfing difficult. Adware may install other malware unintentionally, rendering your system useless.

Key loggers or system monitors

Many computer users are subjected to passive monitoring and logging of every keystroke entry on their machines, often without their knowledge. Keystroke refers to any operation performed via a keyboard button, such as typing in a web address or password.

Keystrokes are the words you enter on your keyboard. Every keystroke sends a message to your computer, telling it what to do. The following are some examples of instructions:

  • Length of the key press
  • Time of keypress
  • Name of the key used
  • Rate of keypress

When you first log in, it seems like everything is a private discussion. You think you’re just chatting with your gadget, but someone else has heard and recorded everything you’ve said. We exchange sensitive data on mobile phones as part of our increasingly digital lifestyle.

Everything from online bank access to social security numbers is recorded. Computers save everything you do on the internet, including email, websites visited, and even text messages sent.


Trojans are programs that are disguised as something else to fool you. They may look like free software, films, or music, but they have a hidden criminal function. Trojan virus is not a scientific term. Trojan viruses are not technically viruses because they spread as useful software or data to infect other programs. Many experts consider monitoring user activity and returning logs or information to the attacker indicative of Trojans.

There are many ways that attackers can use Trojans. One way is to use them as a tool by themselves. Another way is to use them to deliver future payloads to the computer. For example, a Trojan downloader is an example of a trojan that attackers use to provide future payloads to the computer. Additionally, rootkits can be used to develop a continuous presence on a person’s device or network.

How do you protect yourself from spyware?

The best way to avoid spyware is to prevent it from getting into your computer in the first place. However, sometimes you can’t avoid downloading programs or opening email attachments. Even well-known websites can be infected with spyware that can harm your computer. Look for internet security solutions that have been shown to detect viruses and antimalware signatures.

Make sure that the security company you choose provides ongoing protection. This includes spyware removal tools in case your computer is already infected. When selecting a spyware remover tool, choose one from a reputable internet security firm that isn’t illegal. Some software may be illegal or contain harmful components.

There are many different free antivirus programs that you can choose from. But be careful when you choose one. A free trial might be an excellent way to determine which program is right for you. However, don’t trust a program that says it will protect you from everything for free. They might not have all the skills they need to find malware trying to sneak past them. Anti-spam protection, an advanced anti-spam detection engine, and a virtual encrypted keyboard for financial input can help reduce the risk of something bad happening.

Final thoughts

Do some research before downloading anything onto your computer. There are a lot of fake programs masquerading as anti-spyware that will install spyware onto your computer. When in doubt, download software only from trusted sources. Be very careful when clicking on links in emails or on websites. These can often be used to install spyware onto your computer without you even knowing it. If you think your computer might be infected with spyware, run a full scan with a trusted anti-spyware program. And finally, keep your operating system and all your software up to date. This will help close any security holes that spyware might be able to exploit.

Spyware FAQs

How do hackers use spyware?

By gaining access to your computer or device, spyware can give hackers complete control over your system. They can use it to collect sensitive information, such as your login credentials or financial data. Hackers can also use spyware to launch attacks on other computers or devices on the same network.

Why is spyware dangerous?

Spyware is dangerous because it can be used to collect sensitive information without your knowledge or consent. This information can be used to commit fraud or identity theft. Spyware can launch attacks on other computers or devices on the same network.

Can spyware be installed on the iPhone?

While spyware is not a significant issue for iPhone users, it is still possible for spyware to be installed on your device. If you jailbreak your iPhone, you are more vulnerable to spyware. Jailbreaking is the process of removing the restrictions imposed by Apple on iOS. This allows you to download and install applications from sources other than the App Store.

Are spyware and malware the same thing?

Spyware and malware are not the same things. Spyware is malicious software designed to collect information about you without your knowledge or consent. Malware is a general term that describes malicious software, including spyware.

Will spyware transfer to the new phone?

Spyware is usually specific to the device it is installed on. So, if you get a new phone, the spyware will not transfer to the new device. However, if you backup your old phone before getting a new one, the spyware could also be backed up. This is why it’s essential to only backup your data to a trusted source.

Is it illegal to use spyware?

While spyware is not necessarily illegal, it can be used for illegal purposes. You could be breaking the law if you use spyware to collect sensitive information without someone’s knowledge or consent.

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César Daniel Barreto

César Daniel Barreto is an esteemed cybersecurity writer and expert, known for his in-depth knowledge and ability to simplify complex cyber security topics. With extensive experience in network security and data protection, he regularly contributes insightful articles and analysis on the latest cybersecurity trends, educating both professionals and the public.