IT SecurityCâu 75 / 100
What does 'ransomware' do?
a.It speeds up the computer
b.It backs up your files automatically
c.It encrypts a victim's files and demands payment to restore access
d.It updates the operating system
Giải thích
Ransomware is malware that encrypts a victim's data and demands a ransom, often in cryptocurrency, in exchange for the decryption key. Reliable, offline backups are the best defense, allowing recovery without paying. Paying does not guarantee data recovery and encourages further attacks.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Which of the following is the strongest password practice?
- What is 'social engineering' in the context of security?
- What is the purpose of network hardening?
- Why should Wi-Fi networks use WPA2 or WPA3 encryption instead of WEP?
- What is a 'zero-day' vulnerability?
- What is the role of a digital certificate in security?
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