Which of the following is an example of a phishing attack?

An organization’s website becomes flooded with malicious traffic on the first day of the online shopping season, causing the website to crash and preventing customers from purchasing deals online

The employees of a retail organization responded to emails with a link to malware that enabled a hacker to access the point-of-sale system and obtain customers’ credit card information

An organization’s employees clicked on a link that allowed a worm to infiltrate and encrypt the organization’s operating system, rendering it unusable. A group of hackers is demanding payment to unlock the encryption

A group of online activists hacked into the private email and confidential records of the local police department and released the information online to expose the corrupt practices of the department