Phishing attacks are typically delivered via email, so the most effective immediate measure is to filter out these malicious emails.
Enabling Windows Firewall: Helps protect against network threats but does not specifically address phishing emails.
Activating the email spam filter: Directly targets phishing attempts by filtering and blocking suspicious emails before they reach the user.
Using a secure VPN connection: Enhances secure communications but does not prevent phishing attacks.
Running vulnerability scans on a schedule: Identifies and mitigates vulnerabilities but does not address phishing emails directly.