The first half of 2020 is behind us, which means it's time for a look at how the internet as a whole changed during the past 3 months...

The first quarter of 2020 is behind us, which means it's time for another look at some of the interesting ports accessible on public IPs. This time however, we will take a look at how the internet as a whole changed during the past 3 months, but also at specific changes related to support of different versions of SSL and TLS...

A Diary of mine was published today on the SANS Internet Storm Center website. In this one, we’ll take a look at changes in the number of web servers, which support TLS 1.0 and TLS 1.1…

The last quarter of 2020 is behind us, which means it's time for another look at some of the interesting ports accessible on public IPs. This time however, we will take a look at how the internet changed during the whole of 2020, not just at the past 3 months...

A Diary of mine was published today on the SANS Internet Storm Center. In this one, we take a look at the increse in support of TLS 1.3 by HTTPS servers and the decrease in support of SSL 2.0.

If you've read any of my posts about open ports on public IP addresses either here or on the SANS Internet Storm Center website, you probably know that I'm interested in how the internet changes over time and I try to gain at least some understanding of it by analyzing data gathered over time from Shodan. Since I'm probably not the only one who finds the changes in numbers of different open ports interesting, I've decided to start publishing quarterly charts for the number of IPs, which have some of the more interesting ports open/services accessible from the internet...

One of the side effects of social distancing and self-quarantining due to COVID-19 was a large increase in the use of VPNs (and, in some cases, different remote access protocols, such as RDP or SSH) by companies around the world, so that their employees might work from home. I was wondering how large this increase would be when compared to the usual state of affairs. To determine this, I took a look at data I gathered from Shodan over the course of March and made couple of - hopefully interesting - charts.

After I finished the analysis of SSL/TLS configuration of almost 1400 internet banking portals (see the relevant ISC Diary, a question came to me. Internet banking portals should be among the best secured systems put online, yet not all of them made the mark when it came to encryption used to secure HTTP traffic. Would the situation be even worse for sites which are commonly assumed to lack proper security measures?

A Diary of mine was published today on the SANS Internet Storm Center. In this one we take a look at the use of TLS (and SSL) on banking sites all over the world.