What you need to know Microsoft may make changes to the Microsoft Active Protections Program following the recent attack on its Exchange email servers. A report claims that MAPP members may have leaked critical information about vulnerabilities. Microsoft has looked into at least two Chinese companies, according to the report. Following the most recent attacks on Microsoft Exchange email servers, Microsoft may have to revise how it shares security vulnerabilities. According to Bloomberg, a suspected leak led to the recent attacks on Exchange servers. The suspected leaks center around the Microsoft Active Protections Program (MAPP). The MAPP has 81 participants that Microsoft shares vulnerabilities with. The program gives these partners early access so they can protect people from attacks. According to sources that spoke with Bloomberg, Microsoft is considering changes to the MAPP. The company fears that MAPP participants may have tipped hackers off about a critical vulnerability around February 18.