Understanding Computer Viruses

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Definition

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Malicious software that harms computers

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Common Types

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Trojan, Worm, Spyware, Ransomware

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Trojan

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Disguised as legitimate software

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Worm

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Spreads without user action

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Spyware

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Steals personal information

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Ransomware

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Locks files for ransom

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Antivirus

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Software to detect and remove viruses

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Firewall

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Blocks unauthorized access

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Phishing

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Tricks users into giving info

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Safe Browsing

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Avoid suspicious links and downloads