Wassim masood has been the webmaster for woori finance only ten days when woori's website was flooded with access attempts. wassim shut down the site and only opened it to web addresses which he specifically identified as legitimate. as a result, many of woori's customers were unable to obtain loans, causing woori to lose a significant amount of business. woori finance suffered from a
a. malware attack.
b. denial-of-service attack.
c. cyber-extortion attack.
d. zero-day attack.

b. denial - of - service attack.

Explanation:

Denial - of - service -

It is a type of attack , where the hackers tries to prevent the legitimate users from using the service .

The strategy used in this case is , the attacker sends a lot of messages or mails asking the network for authentication .

Hence , same is the case with Woori , it suffered from a denial - of - service attack .

the answer is b. the events might happen and are based on crimes.

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy