Hi Community,
On 10 March 2020, Microsoft recommended to move to LDAP channel binding and LDAP signing to avoid replay attacks on the LDAP communication.
After the hardening changes are done, Simple Authentication and Security Layer (SASL) LDAP binds that do not request signing (integrity verification) will be rejected by Active Directory domain controllers.
This knowledge base article describes how the Sophos Web Appliance communicates with Active Directory / LDAP.
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