Online shopping nowadays offer shoppers desired savings and is easy and convenient. However, it can be unsafe when personal information is accessed by an unauthorised person and credit card details are stolen.  Shopping online is enjoyable but there are concerns with security when paying for goods and services on the Internet.  Account details need to be safe from interference.
Two measures that overcome security problems are:
1. Data encryption: is used to secure data during transmission where data is encoded, transmitted, and then converted to its original form. When there is inference in the transmission of data, the data is not recognised therefore can’t be accessed.
2. Backup: There is a greater risk when the data is accessible to multiple users over a network.  To prevent data loss, data destroyed or maliciously modified the security of data storage is essential. Reliable backup procedures are used to ensure the transaction has been accurately stored.

Personally, I think online shopping is convenient where the customer has access to a variety of products and items that can not be found in store. However, I advise people to be cautious of the site they’re purchasing on. It’s preferred to purchase on a site that is well-known and familiar, therefore your ensured to receive your purchased items and not lose additional money. It’s also useful to consider how your payment can be made. Sometimes credit cards are not ideal as some people may be insecure of their credit card details being accessed illegally, alternate ways can be considered such as money order, cheque bank deposit etc.
Reference:

http://www.globalsign.com/company/press/241108-safe-shopping.htm