Я подозреваю, что это какая то функциональность от самого микрософтовского домейна, которую можно включить. Вот что пишут лучшие собаководы:
Store Password Using Reversible Encryption for All Users policy I’ll start by saying that this policy should only be enabled on a per-user basis and then only to meet the user’s actual needs. As you all know, passwords in the password database are all encrypted and this encryption can’t normally be reversed. If your company uses an application that needs to read a password, then that is the only time you would want to enable this setting. Keep in mind that when enabling the Store Password Using Reversible Encryption for All Users policy, it’s like your passwords are stored as plain text, representing the same security risks. Always be cautious when enabling that policy.
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Вот что пишут лучшие собаководы:
Store Password Using Reversible Encryption for All Users policy
I’ll start by saying that this policy should only be enabled on a per-user basis and then only to meet the user’s actual needs. As you all know, passwords in the password database are all encrypted and this encryption can’t normally be reversed. If your company uses an application that needs to read a password, then that is the only time you would want to enable this setting. Keep in mind that when enabling the Store Password Using Reversible Encryption for All Users policy, it’s like your passwords are stored as plain text, representing the same security risks. Always be cautious when enabling that policy.