Use your card only in online stores or services with good reputation. If you want to buy a product or service in an unknown site, search for its reputation before closing the deal. For this, you can look for reviews in search engines or search specific sites for this purpose.
It is also important to check that, at the time of purchase, the site makes the symbol of a padlock appears in the browser. If not, it is recommended to complete the process because the lock indicates that the site is encrypting sending your information, adding a layer of security important to the process.
Avoid stores that offer very advantageous prices, present messages with misspellings, offer poor-quality images and are very similar to known electronic commerce sites. These are usually characteristics of fraudulent websites. When in doubt, buy elsewhere or, if necessary, consider the possibility of using bank transfer as payment. See more guidance here
It is also important to check that, at the time of purchase, the site makes the symbol of a padlock appears in the browser. If not, it is recommended to complete the process because the lock indicates that the site is encrypting sending your information, adding a layer of security important to the process.
Avoid stores that offer very advantageous prices, present messages with misspellings, offer poor-quality images and are very similar to known electronic commerce sites. These are usually characteristics of fraudulent websites. When in doubt, buy elsewhere or, if necessary, consider the possibility of using bank transfer as payment. See more guidance here