Typosquatting, also known as URL hijacking, is a malicious practice where attackers register domain names that are similar to popular websites or trademarks, but contain typographical errors or slight variations. The purpose of typosquatting is to capitalize on common typing mistakes made by users when entering a website's URL. By creating these deceptive domain names, attackers aim to redirect users to their own fraudulent websites, which may host malware, phishing forms, or other malicious content. Typosquatting relies on user error and the trust associated with legitimate websites, making it a deceptive technique used for malicious activities.