What type of threats does Windows Defender protect against?

Windows Defender is a security program developed by Microsoft as part of its Windows operating system suite. The program provides protection against a wide variety of malware, including viruses, spyware, worms, rootkits, and other malicious software. It also monitors network traffic and files for suspicious activity.

Windows Defender helps protect against the following types of threats:

1. Viruses: A virus is a malicious computer program that can replicate itself and damage or steal information from computers on which it is installed. Windows Defender scans files to detect and remove existing viruses and can even block new ones from entering your system.

2. Spyware: Spyware is a type of software that spies on the user’s activities and collects personal data. This data can then be used to send targeted ads or steal sensitive data. Windows Defender is able to detect and remove most spyware programs.

3. Worms: A worm is a self-replicating computer program that uses networked computers to spread itself, often without the user’s knowledge or consent. Windows Defender can detect and remove worms, as well as stop them from spreading.

4. Rootkits: Rootkits are a type of malware that can hide in your system, making it difficult to detect or remove them. Windows Defender includes real-time scanning and can detect and remove rootkits.

5. Adware: Adware displays unwanted advertisements on your computer, often resulting in slow performance and other issues. Windows Defender can detect and remove most adware programs.

6. Browser hijackers: Browser hijackers are malicious programs that change your browser settings, such as your homepage, search engine, and start page. Windows Defender can detect and remove most of these programs.

7. Trojans: Trojans are malicious programs disguised as legitimate software. They can be used to steal sensitive data or give attackers control over your computer. Windows Defender can detect and remove most common trojans.

8. Ransomware: Ransomware is a type of malicious software that encrypts your files and demands a payment in order to get them back. Windows Defender can detect and block ransomware before it can do any damage.

Overall, Windows Defender is an effective tool for protecting your computer from a variety of different threats. It is important to keep your Windows Defender up-to-date in order to maximize its effectiveness.