Phishing attacks targeting holiday shoppers will craft messages using trendy electronics and other popular must-have items. Phishing messages are spotted year round and increase significantly when new products are unveiled by Apple, Google, Microsoft, Samsung and other top technology vendors. But phishing scams peak during the holiday gift-shopping period from Nov. 29 through Dec. 25. The US-CERT said to avoid offers that seem too good to be true. Don't follow links in unsolicited messages. Visit the retailer site directly to verify the legitimacy of an offer, said McAfee.