One of the most critical considerations merchants need to make this holiday season is fraud prevention strategies. Unfortunately, retailers often make that decision until the last minute. Why? With an array of new and sophisticated types of fraud, it can be challenging to know what to prepare for.

According to new data, the most common fraud tactics that retailers encounter are return fraud (21%), fake account creation (18%), account takeover (16%), gift card fraud (14%), and synthetic identity fraud (14%). To help ecommerce merchants prepare for these types of attacks this holiday season, let’s look at fraudsters’ tactics and their impact.