It never hurts to add a layer of security to your site, but your website doesn’t get banking or credit card information. PayPal handles all that. However, you are still getting some personally identifiable information, so you should make sure to update your site regularly, keep plugins up to date, and possibly use a security plugin like Wordfence, Securi, or iThemes Security. I use all of them on most of my sites.
Lab Notes Update
actions adoption apf boilerplate c# custom post types Desktop Server divi elegant themes email extensions featured image filters forms frameworks google fonts hooks ifttt internationalization ipg ithemes builder magic tags MAMP metabox optiontree paypal php.ini PhpStorm pods redux roadmap rupee ServerPress settings api shortcodes smtp translation usspi visual studio vs2013 wordcamp XAMPP xdebug xml-rpc zenpress