https://www.sqreen.com/checklists/php-security-checklist
https://github.com/guardrailsio/awesome-php-security
https://www.cyberciti.biz/tips/php-security-best-practices-tutorial.html
https://www.meetup.com/pt-BR/OWASP-Sao-Paulo-Chapter/
https://paragonie.com/blog/2017/12/2018-guide-building-secure-php-software