$ git clone firstname.lastname@example.org:repo/app.git
Cloning into 'app'...
The authenticity of host 'bitbucket.org (220.127.116.11)' can't be established.
RSA key fingerprint is SHA256:xxx.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'bitbucket.org,18.104.22.168' (RSA) to the list of known hosts.
email@example.com: Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.