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A pen test confirmed the latest MS vulnerability in a hacker being able to intercept password. Now we are doing a 2 factor authentication but also removing OWA features. What will I be losing within my Lync 2013 environment. We have federation with other companies as well as with PIC. We also use Lync mobile and 'sometimes' conduct meetings with non-lync clients. I have a feeling that we will be losing more than just presence.
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A pen test confirmed the latest MS vulnerability in a hacker being able to intercept password. Now we are doing a 2 factor authentication but also removing OWA features. What will I be losing within my Lync 2013 environment. We have federation with other companies as well as with PIC. We also use Lync mobile and 'sometimes' conduct meetings with non-lync clients. I have a feeling that we will be losing more than just presence.

Lync without OWA

Instant messaging (IM) is a type of online chat that offers real-time text transmission over the Internet. A LAN messenger operates in a similar way over a local area network. More advanced instant messaging can add file transfer, clickable hyperlinks, Voice over IP, or video chat. Non-IM types of chat include multicast transmission, usually referred to as "chat rooms". Depending on the IM protocol, the technical architecture can be peer-to-peer (direct point-to-point transmission) or client-server (a central server retransmits messages from the sender to the communication device).