Exchange Fix Bypass; Schneider UMAS Patch Bypass; Comm100 Compromise Microsoft Exchange Vulnerability Fix Bypassed https://twitter.com/testanull/status/1576774007826718720 Schneider Electric UMAS Patch Bypass https://securelist.com/the-secrets-of-schneider-electrics-umas-protocol/107435/ Supply Chain Attack via Trojanized Comm100 Chat Installer https://www.crowdstrike.com/blog/new-supply-chain-attack-leverages-comm100-chat-installer/ keywords: comm100; supply chain; trojan; chat; installer; microsoft; exchange; schneider; umas; patch