Warning: Online shopping threats to avoid this Black Friday and Cyber Monday 

**Holiday shopping threats overview:** This advisory warns consumers about commonly observed online threats during the holiday season — brand-impersonation scams (fake Amazon/Walmart/USPS sites and ads), credit-card skimmers injected into e-commerce sites, and rising malvertising campaigns — highlights observed increases and scale, and provides practical mitigations such as avoiding sponsored ads, checking URLs, monitoring financial statements, using ad/malicious-content blockers, and enabling MFA.