Category Archives: web

Attack Techniques: Invoice Scams

Today in “Attack techniques so stupid, they can’t possibly succeed… except they do!” — we look at Invoice Scams. PayPal and other sites allow anyone (an attacker) to send anyone (their victims) an invoice containing the text of the attacker’s choosing. In this attack technique, PayPal sends you an email suggesting that the attacker alreadyContinue reading “Attack Techniques: Invoice Scams”

Attack Techniques: Trojaned Clipboard

Today in “Attack techniques so stupid, they can’t possibly succeed… except they do!” — the trojan clipboard technique. In this technique, the attacking website convinces the victim to paste something the site has silently copied to the user’s clipboard into a powerful and trusted context. A walkthrough of this attack can be found in theContinue reading “Attack Techniques: Trojaned Clipboard”

Attack Techniques: Remote Control Software

In yesterday’s post, I outlined the two most successful (and stupid simple) attack techniques that you might not expect to work (and you’d be so very wrong): Today, let’s explore number 3: “Please give me control of your computer so I can, uh, fix it?“ In this attack, an attacker convinces you that there’s someContinue reading “Attack Techniques: Remote Control Software”

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”