Codebreaker

You can’t defeat Firesheep! says guy who invented Firesheep

John Moe Nov 9, 2010

On today’s program, we reported on a new plug-in called Blacksheep that’s designed to thwart anyone using the Firesheep spy plug-in.

Essentially, it serves up fake web cookies to Firesheep, Firesheep takes them, and the cookies announce Firesheep’s presence on the network to anyone who has the Blacksheep add-on.

Sheep fight!

Now, Eric Butler, who created Firesheep, he says as a way of demonstrating the lack of security on open networks, says that’s no solution. An attacker can use a VPN to hide themselves or use another tool similar to Firesheep.

Butler responded to the ethical and legal questions about his software with a blog post here .

We’re here to help you navigate this changed world and economy.

Our mission at Marketplace is to raise the economic intelligence of the country. It’s a tough task, but it’s never been more important.

In the past year, we’ve seen record unemployment, stimulus bills, and reddit users influencing the stock market. Marketplace helps you understand it all, will fact-based, approachable, and unbiased reporting.

Generous support from listeners and readers is what powers our nonprofit news—and your donation today will help provide this essential service. For just $5/month, you can sustain independent journalism that keeps you and thousands of others informed.