# Threekit Sign-in
When invited to a Threekit Organization, expect to receive a noreply email.
For security purposes, these emails will show the checkmark and Threekit logo in the From field of the email, as shown in the screenshot below. Most major email clients are currently able to display these. If the email you receive does not contain these markers, then it may not be an authentic Threekit email.
Hit the **Redeem invitation** button to get started.
If this is your first invitation to a Threekit Organization, you will need to Sign-up, then create a username and password.
### Logging In with a Verified account
After creating a user name and password, subsequent logins will take place via the login page.
Members of multiple organizations:If you are a member of multiple Threekit Organizations, you will return to the organization you were most recently logged into when logging back in.
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### Resetting your Password
To Reset your password click the **Forgot password?** button on the login page. An email containing instructions to complete the reset will be sent to the requesting user.
### Login Lockout
**Login lockout** has been added to protect accounts from brute-force attackers. Users are given feedback when they fail to log in:
If a login fails five times, the account will be locked for 30 minutes
Organization Administrators can see locked accounts and unlock them:
Administrators can unlock members so that the user can try again or reset their passwords:
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```
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