Experts say fraudulent sites and ads remain a pervasive issue. "Many of the scam sites are short-lived campaigns, so it's an ongoing effort to identify new sites," Ilya Volovik, director of Recorded Future Payment Fraud Intelligence, told CBS News. "Some of the longer living scam sites change their 'sales' advertisement based on a holiday."

Target's deals are just about as good as it gets. We're seeing discounts across categories including headphones, TVs, robot vacuums. Ahead of Black Friday, start shopping these de

Ikea: Stores will operate during normal business hours on Black Friday, which are 10 a.m. to 9 p.m. Some store hours may vary. Find local store hours here. JCPenney: Stores open at 5 a.m. and closing times vary by location. Find local store hours here. Kohl’s: Stores will open at 5 a.m. and close at midnight. Find local store hours here.