Microsoft fears code-sharing program could be the source of Exchange security nightmare

Microsoft is under the impression that the criminals responsible for the recent and highly devastating Exchange hack were tipped off by one (or more) of its customers. As a result, the company is considering changing the way it communicates with its clients.

In a recent Bloomberg report, it was explained that Microsoft runs a special initiative called the Microsoft Active Protections Program (MAPP), through which it notifies certain customers of the vulnerabilities it discovers a few weeks before disclosing them publicly. 

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