Final answer:
Unauthorized access to a system or network by an unauthorized user can take the form of phishing attacks, brute force attempts, or exploitation of vulnerabilities. High-profile incidents such as the iCloud breach demonstrate the serious consequences, including identity theft. As internet usage grows, so does the importance of cybersecurity awareness.
Step-by-step explanation:
An attempt by an unauthorized user to gain access to a system or network typically involves various forms of cyberattacks. For instance, a phishing attack might trick a user into revealing personal information by clicking on a malicious link in an email that appears to be from a legitimate source. Another example is a brute force attack, where hackers try different password combinations to gain unauthorized access to user accounts.
Hackers use sophisticated methods to exploit vulnerabilities in systems, which can lead to serious security breaches. For example, the infamous iCloud breach in 2014, where personal photos of celebrities were leaked, was a result of such unauthorized access. Additionally, identity theft or 'True-name Fraud' is another grave consequence of unauthorized access, where criminals wrongfully acquire and use a person's private information for fraudulent activities.
The increasing dependency on digital technology and the expansive nature of the internet makes it critical for individuals and organizations to be vigilant about cybersecurity. Practicing good digital hygiene, such as using strong passwords and being cautious of suspicious emails or links, can help mitigate the risk of falling victim to cyberattacks.