Cybersecurity experts caution users against clicking "unsubscribe" links in emails, revealing that nearly 1 in 644 are linked to malicious sites. Fraudsters use these links to confirm active email addresses, putting users at risk for phishing attacks. The Wall Street Journal highlights alternative safety measures such as using built-in unsubscribe features in Gmail and Outlook, marking suspicious emails as spam, and leveraging privacy tools to protect identities online.