- • Hashing passwords, encrypting credit cards
- • Simple password (MySQL ENCODE)
- • Asymmetric cryptography (PHP OpenSSL)
- • HTTPS
- • Self signed - user must pick up his phone
- • Authorities - study politics of all of them
- • Cross-Site Request Forgery
- • Protecting e-mail forms from spam
- • strpos($email, "\n") is simple solution