You can apply this do many Governments, banks and insurance websites.
Last example I witnessed: my home insurance forced me to re-register in their website due to some (clearly half-assed) migration. The way to force that was giving you a login form with user/password but no clickable "Submit/Login" button! And then a mini (like 50px tall) banner at the top of the page telling you that you had to recreate the account.
Last example I witnessed: my home insurance forced me to re-register in their website due to some (clearly half-assed) migration. The way to force that was giving you a login form with user/password but no clickable "Submit/Login" button! And then a mini (like 50px tall) banner at the top of the page telling you that you had to recreate the account.