Short Take: Flowspec and BCP38

23 April 2019 | 0 Comments

Why You Should Block Notifications and Close Your Browser

15 April 2019 | 3 Comments

Every so often, while browsing the web, you run into a web page that asks if you would like to allow the site to push notifications to your browser. Apparently, according to the paper under review, about 12% of the people who receive this notification allow notifications. What, precisely, is this doing, and what are…

Research: Practical Challenge-Response for DNS

11 March 2019 | Comments Off on Research: Practical Challenge-Response for DNS

Because the speed of DNS is so important to the performance of any connection on the ‘net, a lot of thought goes into making DNS servers fast, including optimized software that can respond to queries in milliseconds, and connecting DNS servers to the ‘net through high bandwidth links. To set the stage for massive DDoS…

Short Take: CAA records and site security

6 March 2019 | Comments Off on Short Take: CAA records and site security

Long Tail Attacks

27 February 2019 | Comments Off on Long Tail Attacks

Short Take: Cache Covert Channel

13 February 2019 | Comments Off on Short Take: Cache Covert Channel

Short Take: HTTPS Interception

22 January 2019 | Comments Off on Short Take: HTTPS Interception

CAA Records and Site Security

19 November 2018 | Comments Off on CAA Records and Site Security

The little green lock—now being deprecated by some browsers—provides some level of comfort for many users when entering personal information on a web site. You probably know the little green lock means the traffic between the host and the site is encrypted, but you might not stop to ask the fundamental question of all cryptography:…

Short Take: DNSSEC Deployment

6 November 2018 | Comments Off on Short Take: DNSSEC Deployment

BGP Hijacks: Two more papers consider the problem

5 November 2018 | Comments Off on BGP Hijacks: Two more papers consider the problem

The security of the global Default Free Zone DFZ) has been a topic of much debate and concern for the last twenty years (or more). Two recent papers have brought this issue to the surface once again—it is worth looking at what these two papers add to the mix of what is known, and what…