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It could be an advertising company tracking your activity in order to serve up targeted advertisements. Or maybe it's a company determined to guide you to specific Web sites whether you want to visit them or not.
The tool these people and organizations use to affect your browsing experience is called spyware. Spyware is any sort of application that hides in the background and either manipulates or tracks your Web browsing experience. Spyware that tracks you in order to serve up advertising is also called adware. These applications fall into a spectrum that stretches from merely irritating to completely disruptive.
In a best-case scenario, spyware will make your Web browsing experience an annoying one as you try to navigate through pop-up ads, avoid bogus search results or deal with a slow and unresponsive Web browser. At worst, spyware will log your activities and send that information to someone else who might use it to steal your identity.
Pop-up ads can hide spyware -- clicking on one could prompt your browser to download an unwanted application. That's why it's a good idea to click only the X button on a pop-up ad rather than the Cancel button. Spyware can also piggyback onto a legitimate application. You may have seen examples of this in the form of various toolbars. By , it was used in an industry press release, described as we define it today. The term was an instant hit in the mass media and among its audiences. Soon after, in June , the first anti-spyware application was released.
The result was startling. At present, and in general, the Windows operating system is the more favorable target of the spyware applications, thanks to its widespread use. However, in recent years spyware developers have also turned their attention to the Apple platform, as well as to mobile devices.
Spyware authors have historically concentrated on the Windows platform because of its large user base when compared to the Mac. However, the industry has seen a big jump in Mac malware in , the majority of which is spyware. Although spyware authored for the Mac has similar behaviors as the Windows variety, most of the Mac spyware attacks are either password stealers or general-purpose backdoors.
In addition to malicious spyware, there's also so-called "legitimate" spyware for Macs. This software is actually sold by a real company, from a real website, usually with the stated goal of monitoring children or employees. The spyware can send your stolen information via data transfer to a remote server or through email.
Also, it's not just consumers that mobile spyware criminals target. If you use your smartphone or tablet in the workplace, hackers can turn their attack to your employer organization through vulnerabilities in mobile devices.
Unlike some other types of malware, spyware authors do not really target specific groups or people. Instead, most spyware attacks cast a wide net to collect as many potential victims as possible. And that makes everyone a spyware target, as even the slightest bit of information might find a buyer. For instance, spammers will buy email addresses and passwords in order to support malicious spam or other forms of impersonation.
Spyware attacks on financial information can drain bank accounts, or can support other forms of fraud using legitimate bank accounts. Information obtained through stolen documents, pictures, video, or other digital items can even be used for extortion purposes.
So, at the end of the day, no one is immune from spyware attacks, and attackers usually care little about whom they are infecting, as opposed to what they are after. You could be infected and never know. But if you suspect spyware, the first order of business is to make sure your system has been cleaned of any infection so that new passwords are not compromised.
Get yourself a robust cybersecurity program with a reputation for aggressive spyware removal technology.
However, this is not recommended for the inexperienced user. Spyware and adware is not only sneakily intrusive it also slows down your computer, is frustrating and can be very difficult to get rid of. Warnings Do not download antispyware or antivirus software from a banner ad. See all our reporting on spyware at Malwarebytes Labs. Spyware Spyware is a type of malware that hackers use to see your personal information, banking details, or more. Be advised, some spyware binds to system files, and removing it may mess things up.
After you have cleaned your system, think about contacting your financial institutions to warn of potential fraudulent activity. Many purveyors of identity theft protection advertise their services to monitor for fraudulent transactions, or to place a freeze on your credit account to prevent any form of activity.
Activating a credit freeze is definitely a good idea. However, Malwarebytes advises against purchasing identity theft protection. The best defense against spyware, as with most malware, starts with your behavior.