More bugs in Microsoft Exchange, cybersecurity training effectiveness questioned and Amazon bomb threat foiled. Welcome to Cyber Security Today. It’s Wednesday, April 14. I’m Howard Solomon, contributing reporter on cybersecurity for ITWorldCanada.com. More serious vulnerabilities in on-premise versions of Microsoft Exchange Server have been found. The discovery was announced yesterday as part of the monthly Microsoft Patch Tuesday security update releases. The patches need to be applied as soon as possible to Exchange versions 2013, 2016 and 2019. According to news reports some of the vulnerabilities were found by the U.S. National Security Agency. This comes after last month Microsoft reported that a Chinese-based threat actor and others are exploiting bugs to get into on-premise Exchange email accounts. The patches released yesterday also fix holes in Windows, the Edge browser, Office and other Microsoft products. At the same time Adobe released fixes for Photoshop, Bridge and other applications.