Describe at least three kinds of security threats and how to protect against the

Malware: This is a type of software designed to gain unauthorized access or to cause damage to a computer. Protection against malware includes installing and regularly updating antivirus software, avoiding suspicious emails or websites, and regularly backing up data.

Phishing: This is a type of attack where the attacker pretends to be a reputable entity or person in email or other communication channels to distribute malicious links or attachments that can perform a variety of functions, including the extraction of login credentials or account information from victims. Protection against phishing includes being wary of suspicious emails, not clicking on links in emails from unknown sources, and regularly updating and patching systems.

Denial of Service (DoS) Attacks: This type of attack is intended to shut down a machine or network, making it inaccessible to its intended users. DoS attacks accomplish this by flooding the target with traffic or sending it information that triggers a crash. Protection against DoS attacks includes having robust network architecture, employing a DoS protection service, and regularly updating and patching systems.