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Computer viruses are malicious programs that can infect and harm computers. They can replicate themselves and spread to other computers. They can cause various problems, including data loss, system crashes, and even identity theft. There are many different types of computer viruses, each with its own unique characteristics.
Computer viruses can infiltrate systems through infected email attachments, clicking malicious links on unsafe websites, or exploiting vulnerabilities in outdated software. Users should be careful when opening unknown files and visiting suspicious websites.
Common signs of a computer virus infection include sluggish system performance, unsolicited advertisements and pop-ups, unexpected system restarts, and unexplained changes to settings or files. Some viruses may operate stealthily to evade detection.
To prevent computer virus infections, it's crucial to regularly update software, install and update antivirus software, and maintain awareness of cybersecurity practices. Additionally, avoid suspicious websites and refrain from opening attachments from unknown senders.
Most dangerous types of viruses:
Most dangerous types of viruses:
File viruses: Infect files on a computer, such as EXE programs or DOC documents.
Script viruses: Exploit vulnerabilities in scripting languages to spread and cause damage.
Worms: Self-replicate and spread over computer networks, taking advantage of software vulnerabilities.
Trojans: Disguise themselves as legitimate programs to infect a computer and steal data.
Ransomware: Encrypts files on a computer and demands a ransom for their decryption.
Phishing: Deceives users into revealing confidential information, such as passwords or credit card details.
Keylogger: Software or hardware that records keystrokes on a computer, often used to capture sensitive information such as passwords.
5 Ways to Protect Yourself from Viruses:
5 Ways to Protect Yourself from Viruses:
Install antivirus software and keep it updated.
Avoid opening suspicious attachments or links in emails.
Be cautious when downloading files from the internet.
Use strong passwords and change them regularly.
Update the software on your computer and mobile devices.
Additional Tips:
Be careful on Wi-Fi networks.
Use a firewall.
Back up your data on a external hard drive or in cloud.
Be aware of the latest online threats.
Best Free Antivirus in 2024:
Best Free Antivirus in 2024:
1. Avast Free Antivirus:
Excellent protection against malware and phishing.
Low system resource usage.
Additional features, such as Wi-Fi network protection and software updater.
2. AVG AntiVirus Free:
Strong protection against various online threats.
Easy-to-use interface.
Additional features, such as anti-spam protection and firewall.
3. Avira Free Antivirus:
Effective protection against viruses, Trojans, and ransomware.
Additional features, such as VPN and browser protection.
High rating in independent tests.
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