By default access to My Area is secured with a password.
You can increase the security by opting for 2-step verification. To access your projects, proposals and organisation data, you will then have to login with something you know (your password) and something you own (e.g. mobile phone or device).
You will have to register your mobile phone or device as a second authentication factor before you can activate the 2-step verification for your account.
2-step verification is for your account