alt Hacker NewsThere was a story where Microsoft patched a program for which they likely lost the source: https://www.bleepingcomputer.com/news/microsoft/microsoft-ap...
There was a story where Microsoft patched a program for which they likely lost the source: https://www.bleepingcomputer.com/news/microsoft/microsoft-ap...
Complete speculation: They might not have had it in the first place or might not have had legal license to modify it themselves. The About Box shown in the article implies Microsoft just licensed MathType from Design Sciences, Inc. DSI got acquired by WIRIS just a few months before that in 2017 which may also have had something to do with it: https://en.wikipedia.org/wiki/MathType