CompTIA Tech+ (FC0-U71)Applications and SoftwareMedium
A user is complaining that their web browser's homepage consistently reverts to an unwanted search engine despite them changing it in the browser settings. They also notice new toolbars appearing. Which of the following browser settings or components is MOST likely being manipulated?
- ADeveloper tools console.
- BDefault search engine and extensions.
- CPop-up blocker settings.
- DBrowser cache and cookies.
Show answer & explanationAnswer & explanation
Correct answer: B. Default search engine and extensions.
Unwanted homepage changes and new toolbars are common symptoms of malicious browser extensions or hijacked default search engine settings, often caused by adware or spyware.
Why the other options are wrong
- A. Developer tools are for web developers and have no impact on persistent unwanted homepage changes or toolbar installations.
- C. Pop-up blocker settings control pop-up windows but do not cause homepage changes or new toolbars.
- D. Browser cache and cookies can affect loading times and tracking, but do not directly cause homepage changes or new toolbars.
Browser Hijacker
A type of malware that modifies a web browser's settings without user permission, often changing the homepage, default search engine, or installing unwanted toolbars to redirect traffic and display ads.
- Often bundled with free software or downloaded from untrusted sources.
- Can be difficult to remove as it may restore settings after a reboot.
- Requires checking browser extensions, default search engines, and installed programs.
Memory trick: When your browser takes a detour, check who's driving and what they've added.