# Vulnerabilities You can run multiple tests in parallel by specifying the `-t/--test` option using test number separated by spaces. All tests are run if no test option is specified. Available vulnerability tests in alphabetical order include: 1. **BREACH** -- Test for https encoding methods 2. **CCS Injection** -- Test for Change Cipher Spec injection 3. **CRIME** -- Test for ssl/tls encoding methods 4. **DROWN** -- Test for rsa key exchange suites with ssl2 support 5. **Fallback SCSV** -- Test if fallback Signaling Cipher Suite Value is available 6. **Forward Secrecy** -- Test for forward secrecy cipher suites 7. **FREAK** -- Test for RSA + EXPORT cipher suites 8. **HSTS** -- Test for HTTP Strict Transport Security support 9. **Heartbleed** -- Test for Heartbleed vulnerability 10. **Renegotiation** -- Test for insecure renegotiation (secure renegotiation extension) 11. **LOGJAM** -- Test for DH + EXPORT cipher suites 12. **RC4 Support** -- Test for RC4 cipher suites 13. **Session Ticket** -- Test for session ticket support 14. **SWEET32** -- Test support for 64-bit key length encryption ## Creating new tests - Check the [contributing](contributing.md#contribute-a-new-vulnerability-test) file for a guide on how to contribute by creating new tests.