LenoxSoft shows you a record where the prospect has many activities that are email clicks...

LenoxSoft shows you a record where the prospect has many activities that are email clicks from the same email. Looking at the prospect's audits, you see visitor association changes where the prospect forwarded the email to colleagues who clicked the link in the email causing the cookie intended for the original recipient to track the colleagues. Which of the following is not a Marketing Cloud Account Engagement best practice for preventing this issue in the future?