COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

TYPES OF THREATS AND ATTACKS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is meant by a zero-day attack?
A
Designed to make a network or website grind to a halt by using ‘Zombie’ computers to flood the network/website with useless network communication such as repeated login requests at the same time.
B
Websites use databases to store user details.User enters username and password-this is checked against SQL database.Criminals can bypass this using special commands.
C
Criminals use packet analysers or ‘packet sniffers’ to intercept data traffic. Criminals try and steal logins, passwords, credit card numbers.
D
New programs are tested for security faults.The day a security flaw is found is given a special name. There is a race between hackers and company to exploit and fix.
Explanation: 

Detailed explanation-1: -A zero-day is a security flaw in software, hardware or firmware that is unknown to the party or parties responsible for patching or otherwise fixing the flaw.

Detailed explanation-2: -Explanation: Zero-day vulnerability is a type of vulnerability unknown to the creator or vendor of the system or software. Until such bugs get fixed, hackers take advantage of these vulnerabilities to exploit the system.

Detailed explanation-3: -Zero-day meaning and definition “Zero-day” is a broad term that describes recently discovered security vulnerabilities that hackers can use to attack systems. The term “zero-day” refers to the fact that the vendor or developer has only just learned of the flaw – which means they have “zero days” to fix it.

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