Online shopping safety
Generally try to use reputable web sites for online shipping. Check with friends or online reference (not affiliated with the site) to get a feeling for their reputation. Next ensure that the site that you enter your credit card information into uses encryption. Look for the ‘s’ in the http web link name, or look for the ‘lock’ symbol in your browser to indicate that encryption is being used.
Also when shopping online, do not let a computer or smartphone remember/save your password. Always decline this option.
Consider creating a separate email account for your online activities, like online shopping, separate from the email account you use to communicate with family/friends and conduct business with. This way if the email you use for shopping is compromised your mail email account will still be intact.