Important: #94312 - Removed BE/loginSecurityLevel and FE/loginSecurityLevel options 

See forge#94312

Description 

The FE/loginSecurityLevel and BE/loginSecurityLevel options were used to define the security level of the backend and frontend login. Since dropping the two possibilities challenged and superchallenged in v7, rsa and normal were the only two valid values left.

The rsa value however also became more or less obsolete, after dropping EXT:rsaauth from Core in forge#87470. Setting rsa therefore only had effect in case the standalone friendsoftypo3/rsaauth extension was installed.

Finally, with forge#94279 also the support for the standalone friendsoftypo3/rsaauth was abandoned, making the loginSecurityLevel option superfluous, as normal was left as the only valid option.

Therefore, both options FE/loginSecurityLevel and BE/loginSecurityLevel have been removed. As a result and to follow our backwards-compatibility promise, all authentication services will still receive the $passwordTransmissionStrategy argument in their processLoginData() method, which however will now always be normal.

Impact 

The options have been removed from the TYPO3's default configuration. When those options have been set in your LocalConfiguration.php or AdditionalConfiguration.php files, they are automatically removed when accessing the Install Tool or System Maintenance area.