How can online shoppers protect themselves this holiday season?

Zscaler ThreatLabZ issues a holiday shopping advisory warning of an increase in phishing, scam websites, and malvertising targeting Black Friday shoppers; the report notes observed rises in user clicks on scams and provides a concise security checklist (inspect email sources, avoid unofficial app stores, verify HTTPS and URLs, avoid emailed invoices and public Wi‑Fi, enable two‑factor authentication, keep systems patched, use adblockers, back up data, and consult FTC guidance).