Cyber squatters register domain names similar to companies' domains in order to sell them back at higher prices or divert traffic. They may register variants like YourDomainName.org or allow competitors to register confusingly similar names. To prevent this, companies should fill out an authorized entry form with their domain registrar listing exact matches and variants they claim, along with contact details. This helps block unauthorized registrations and notifies the registrar if someone tries to register a claimed name. Companies must act quickly to fill out these forms within the registrar's timeframe or risk losing variants like .info or .net versions of their domain to other parties.