Security handling

Hi, possible future user here, given that as recently as a month ago revoluts own official plugin was closed off the store after an SQL vulnerability was found, see here: https://patchstack.com/database/vulnerability/revolut-gateway-for-woocommerce/wordpress-revolut-gateway-for-woocommerce-plugin-3-1-1-sql-injection-sqli-vulnerability

What teps dos paybird take when it comes to plugin security? Is the code audited by an external company? Have you considered https://patchstack.com/auditing/ as a possible option? It would make me more confident in adopting your plugin.