High Entropy

Disinformation Warfare – Attribution makes you Wannacry

Posted by on May 16, 2017 at 11:31 am

After the Wannacry malware wreaked havoc in networks, ticket vending machines, companies, and hospitals the clean-up has begun. This also means that the blame game has started. The first round of blame was distributed between Microsoft and the alleged inspiration for the code. The stance on vulnerabilities of security researchers is quite clear. Weaknesses in […]

Wannacry, Code Red, and „Cyber“ Warfare

Posted by on May 14, 2017 at 9:17 pm

Society and businesses increasingly rely on networked infrastructure. This is not news. Worms that used networks to spread to new hosts in order to infect them is also not news. Code Red did this back in 2001. There is a new worm going around. Its name is Wannacry, and it is allegedly based on published […]

Applied Crypto Hardening Project is looking for Help

Posted by on April 25, 2017 at 1:55 pm

Hopefully many of you know the Applied Crypto Hardening (ACH) project, also known as BetterCrypto.org. The project was announced at DeepSec 2013. The idea was (and is) to compile hands-on advice for system administrators, dev ops, developers, and others when it comes to selecting the right crypto configuration for an application. The BetterCrypto.org document covers […]

SS8 – Replacement for Insecure Signalling System No. 7 (SS7) Protocol revealed

Posted by on April 1, 2017 at 2:37 am

The ageing SS7 protocol has reached it’s end of life. Security experts around the world have criticised vulnerabilities a long time ago. SS7 even facilitated unsolicited surveillance attacks. What’s more, it has its own talks at the annual Chaos Communication Congress – which is a clear sign of fail if there is more than one presentation […]

The Sound of „Cyber“ of Zero Days in the Wild – don’t forget the Facts

Posted by on January 26, 2017 at 11:40 am

The information security world is full of buzzwords. This fact is partly due to the relationship with information technology. No trend goes without the right amount of acronyms and leetspeaktechnobabble. For many decades this was not a problem. A while ago the Internet entered mainstream. Everyone is online. The digital world is highly connected. Terms […]

Scanning for TR-069 is neither Cyber nor War

Posted by on November 30, 2016 at 10:53 pm

The Deutsche Telekom was in the news. The reason was a major malfunction of routers at the end of the last mile. Or something like that. As always theories and wild assumptions are the first wave. Apparently a modified Mirai botnet tried to gain access to routers in order to install malicious software. The attacks […]

Disclosures, Jenkins, Conferences, and the Joys of 0Days

Posted by on November 17, 2016 at 1:37 pm

DeepSec 2016 was great. We have slightly recovered and deal with the aftermath in terms of administrivia. As announced on Twitter, we would like to publish a few thoughts on the remote code execution issue found by Matthias Kaiser. He mentioned the possibility in this presentation titled Java Deserialization Vulnerabilities – The Forgotten Bug Class. […]

Screening of “A Good American” in Vienna with Bill Binney

Posted by on November 9, 2016 at 11:05 am

There will be a screening of the documentary A Good American in Vienna tomorrow. We highly recommend watching this film, even if you are not directly connected to information security. Threat intelligence has far-reaching consequences, and in the case of the world’s biggest intelligence agency it also affects you. A Good American will be shown […]

Of Clouds & Cyber: A little Story about Wording in InfoSec

Posted by on September 5, 2016 at 5:15 pm

In case you ever received a message about our calls for papers, you may have noticed that we do not like the word cyber. Of course we know that it is used widely. Information security experts are divided if it should be used. Some do it, some reject it, some don’t know what to do […]

Information Warfare: “Breaking News” considered harmful

Posted by on August 31, 2016 at 4:13 pm

Eight years ago the stocks of UAL took a dive. Apparently a six year old news article resurfaced via Google. Googlebot, which is used to index news sites, confused one of the most popular web articles of The Sun-Sentinel with breaking news. The story contained the words United Airlines Files for Bankruptcy. Unfortunately a software […]

Transforming Secure Coding into Secure Design

Posted by on August 21, 2016 at 6:09 am

Secure Coding is the way to go when you develop applications for the real world. Rename errors and bugs into failures. Turn #fail to #win. Instant karma. In addition there are lots of best practices, checklists, and documents around that will tell you what to anticipate. However the design of an application precedes the code […]

A Perspective on Code and Components – assert(), don’t assume()

Posted by on July 21, 2016 at 12:43 pm

Have you ever looked closely at the tools you use on a daily basis? Taking things apart and putting them back together is an integral part of understanding the universe. Scientists do it all of the time (well, at least some do, there are things that can’t be put together easily once taken apart). So […]

Intelligence on the Silver Screen: A Good American Kickstarter Campaign

Posted by on July 21, 2016 at 11:54 am

Surveillance has a bad reputation. No one likes to be watched. Yet infosec researchers, sysadmins, and developers talk a lot about log files. We need to watch stuff for various reasons. You got your mail logs, diagnostic messages, performance metrics, network addresses, and more painstakingly sorted by timestamps and maybe geolocation. Log data is part […]

The Internet of Threats revisited

Posted by on July 14, 2016 at 1:12 pm

Everyone is talking about the Internet of Things. Connecting household applications (yes, applications, appliances is so 1990s) to a network hasn’t been more fun than now. Also measuring things is great. Today most sensors are deployed to generate endless streams of data because we can, not because there is a need for it. And I […]

The Didactic Side of Information Security

Posted by on May 18, 2016 at 2:40 pm

Explaining complicated topics with a lot of dependencies is hard. Even the operation of devices such as computers, telephones, or cloud(ed) applications can’t be described in a few sentences. Well, you can, if you use the tried and true lie-to-children method coined by Jack Cohen and Ian Stewart. If you really want to dive into […]