Critical security bug in the font-handling in Windows 7 and above, but they’re only going to patch supported versions, so if you’re still running 7 or 8 and aren’t an Enterprise customer with an extended support contract, you’re pretty well fucked. Don’t ever open downloaded documents again, in any format.
The specific issue is in support for the long-abandoned Type 1 Multiple Master format from Adobe. This format predates Unicode font support, which tells you how long it’s been gathering dust with nobody supporting the code (except for some export tools to generate a standard family of Type 1 fonts by twiddling the available knobs).
Markdown formatting and simple HTML accepted.
Sometimes you have to double-click to enter text in the form (interaction between Isso and Bootstrap?). Tab is more reliable.