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Question in regards to SSL and TLS

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Last Modified: 2016-08-15
We ran a security report on our network and it came back with 4 servers which it said had sev 3 vulnerabilities which to fix this was to disable the following:
ssl2
ssl3
tls v1

It said to then enable TLS v1.2 only
Of these servers, one is exchange, 1 is Citirx, and the other is a web server.
My question is, what will break if we do follow this and disable all 3 that it suggested to...
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