First Look: Apple’s NEURLFilter API

At WWDC 2025, Apple introduced an interesting new API, NEURLFilter, to respond to a key challenge we’ve talked about previously: the inherent conflict between privacy and security when trying to protect users against web threats. That conflict means that security filtering code usually cannot see a browser’s (app’s) fetched URLs to compare them against availableContinue reading “First Look: Apple’s NEURLFilter API”

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”

Attack Techniques: Fake Literally Everything! (Escrow Scam)

The team recently got a false-negative report on the SmartScreen phishing filter complaining that we fail to block firstline-trucking.com. I passed it along to our graders but then took a closer look myself. I figured that maybe the legit site was probably at a very similar domain name, e.g. firstlinetrucking.com or something, but no suchContinue reading “Attack Techniques: Fake Literally Everything! (Escrow Scam)”

Vibe-coding for security

Recently, there’s been a surge in the popularity of trojan clipboard attacks whereby the attacker convinces the user to carry their attack payload across a security boundary and compromise the device. Meanwhile, AI hype is all the rage. I recent had a bad experience in what I thought was a simple AI task (draw aContinue reading “Vibe-coding for security”