Nearly two-thirds (64%) of  Americans have not made an online purchase because of security concerns, according to a new poll by the National Cyber Security Alliance (NCSA).

As Americans prepare for the holiday shopping season, online security plays a major part in consumers’ purchasing decision, according to a new poll by the National Cyber Security Alliance (NCSA) and Symantec.

More than half (63%) of online shoppers said they did not complete a purchase because of security concerns. The most common reasons for not making an online purchase include:

Google has joined the board of directors for the National Cyber Security Alliance (NCSA). Google’s board of directors seat will be held by the company’s Head of Anti-malvertising, Eric Davis.

Davis leads efforts to develop and implement policies, processes, and tools to protect the Google network, the company’s consumer and advertising products, and its users.