Family Safety Content Filtering

Microsoft Family Safety is a feature of Windows that allows parents to control their children’s access to apps and content in Windows. The feature is tied to the user accounts of the parent(s) and child(ren). When I visit https://family.microsoft.com and log in with my personal Microsoft Account, I’m presented with the following view: The “Nate”Continue reading “Family Safety Content Filtering”

Web Category Filtering

Since the first days of the web, users and administrators have sought to control the flow of information from the Internet to the local device. There are many different ways to implement internet filters, and numerous goals that organizations may want to achieve: Today’s post explores the last of these: blocking content based on category.Continue reading “Web Category Filtering”

ERR_BLOCKED_BY_CLIENT and HTML5 Sandbox

Recently, many Microsoft employees taking training courses have reported problems accessing documents linked to in those courses in Chrome and Edge. In Edge, the screen looks like this: But the problem isn’t limited to Microsoft’s internal training platform, and can be easily reproduced in Chrome: What’s going on? There are a number of root causesContinue reading “ERR_BLOCKED_BY_CLIENT and HTML5 Sandbox”

Browser Security Bugs that Aren’t: JavaScript in PDF

A fairly common security bug report is of the form: “I can put JavaScript inside a PDF file and it runs!” For example, open this PDF file with Chrome, and you can see the alert(1) message displayed: Support for JavaScript within PDFs is by-design and expected by the developers of PDF rendering software, including commonContinue reading “Browser Security Bugs that Aren’t: JavaScript in PDF”