"The U.S. has been blighted by counterfeiting for a longtime; a point that was emphasized by the OECD earlier this year. Its report …showed that the US accounted for 20 percent of the total value of global fake goods seizures in 2013," he told CNBC via email.
"Of the 12 nations that were included in the counterfeiting hotspot rankings, nine were based in Europe."
Black Friday is of huge value to retailers, U.S. consumers spent around $67.5 billion in stores last year, according to the Statistic Brain Research Institute. With that much money at stake, it's possible for counterfeit goods to enter their supply chain, especially when smaller or independent traders look for bargains in order to compete with larger rivals.
"A sales day such as Black Friday intensifies the desire fora bargain and, therefore, creates a demand that can be filled by people supplying counterfeit goods," Rahman said.
"It can be the case that people accused of selling counterfeit goods genuinely do not know that what they are selling is fake."
Consumers are also at risk of fraud, as they may be fooled by dodgy deals, warns Trish Young, U.K. & Ireland head of business consulting at Cognizant.
"These 'deals' can often be found on fake websites, which means consumers face an increased risk of faulty transactions, putting their payment details at risk or locking them in for multiple additional payments that they did not see within the small print," Young told CNBC via email.
"The problem is that it is hard to prove authentication in many cases. Unlike 'fair-trade' symbols used for food products, retail customers are forced to trust authenticity when making rapid purchases without conducting diligent research," she added.
Young recommended shopping directly through a brand's own digital channels and physical stores, or through a reputable retailer, to avoid counterfeit goods.