Sophos blocking Jabber

Question

as of this afternoon, users attempting to open Cisco's Jabber in our enterprise are receiving Mal/EncPk-CZ flag from Sophos. We have tried reinstalling with the latest version of Jabber to the same effect. Currently logged in people are not experiencing this, only new attempts.

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QC · Accepted Answer

Hello ITSupport1, 
 as the analysis for Mal/EncPk-CZ says, it's a generic detection and these are, while generally adjuvant, sometimes overzealous. Your best option is to send a sample - normally (if it's indeed false positive) you'll get an updated detection within a few hours. 
 Christian