Explanation:
Spoofing is a cyberattack where a malicious actor disguises their identity by falsifying data, such as email addresses, IP addresses, or websites, to deceive targets.

Email spoofing involves sending fraudulent emails from forged addresses, while IP spoofing conceals the attacker’s location by falsifying the source IP. Website spoofing mimics legitimate sites to steal user credentials.

Spoofing can be used as a precursor to phishing, distributed denial-of-service (DDoS) attacks, or man-in-the-middle (MITM) attacks.

Additional Information:
Spoofing attacks undermine trust in communication channels. They are often used to bypass security filters and gain unauthorized access.

Preventive measures include DNSSEC for website spoofing protection, SPF records for email spoofing, and secure network configurations to detect and block IP spoofing attempts.

Formal Definition:
Spoofing is a type of cyberattack where a malicious actor falsifies information to disguise their identity and deceive targets, often for unauthorized access or fraud.