Wow, what a crazy week! I’ve been slammed with questions about the heartbleed pandemic and thought I would provide a post answering “so what should I do?”.
For those that don’t know about heartbleed, read this post HERE. I found this cartoon a entertaining way of explaining heartbleed in non-technical terms. The original cartoon can be found HERE via xkcd.com
What should you do? Continue reading
My buddy Aamir Lakhani wrote a great post covering the recently exposed security vulnerability that impacts more than half of the websites on the Internet. Its something everybody needs to be aware of. The original article can be found HERE.
Heartbleed is a serious vulnerability affecting OpenSSL cryptographic libraries. The Heartbleed vulnerability allows an attacker to steal information protected under normal SSL TLS conditions.
Here is what you need to know:
- This is a very serious vulnerability.
- It harms personal computers and everyday users. Attackers could possibly steal user information.
- Many popular websites, including social media, search, email, banking, and health sites are vulnerable.
- The bug is found on most systems and has been present since 2012.
- Most likely, attackers knew about the vulnerability, and may have been exploiting it for a long time.
- Patching and updating systems will not protect owners from attackers who have already captured data.
NSS labs just released their Breach Detection Systems Report found HERE. The purpose for this report is based on the concept that there is a need for security solutions that extend beyond defense measures found in common security products such as Anti-Virus and IPS network appliances. NSS labs have developed a name for the feature designed to stop advanced threats known as having “Breach Detection” capabilities. Its pretty much technology you would implement as a last layer in the event a threat breaches your firewall, AV and network security defenses. Continue reading
I have recently seen a uptick in DDoS / DoS attacks against my customers and asked questions such as “how easy is it to perform these attacks?”, “who launches these attacks?” and “how can I defend against such attacks?”. I have spoke about this topic in the past however will provide both the executing and defending side of DoS in this post. Continue reading
NetFlow is an important tool for incident responders, providing valuable insight into the activities that take place on organizations networks. NetFlow is capable of summarizing information about network traffic into brief records that may be maintained indefinitely, providing a running history of network connections that may be referenced during incident response.
With all the good NetFlow brings, there are still some misconceptions about NetFlow that need to be dispelled. Continue reading
I’ve had people ask about the Darknet and decided to provide a brief overview. To summarize, the Darknet is not some evil network designed to cause chaos. I find it funny when articles refer to the Darknet as some form of attack or thing to watch out for. To put it simply, the Darknet is a closed or hidden network meaning you can’t access webpages using standard Internet browsers. In order to find dark resources, you need specific software and sometimes special permission to access parts of the network. The next screenshot is one method using a TOR browser. Continue reading
Aamir Lakhani wrote a fantastic overview on Bitcoins. You can find the original HERE via www.drchaos.com.
Bitcoin started as a transparent open source currency that provided anonymity. It also provided advantages over traditional currency. Bitcoin is not bound to any organization or country. It is a peer-to-peer trading currency, so it is not subject to financial institutions such as banks, merchants, or payment gateways. A Bitcoin, in almost every way, is like real currency coins that you can use, spend, and save. However, like real currency, it can also be destroyed, lost, and stolen.
For those that have been hanging on to the old Cisco IPSEC client, its time to really consider a migration. The client will no longer be downloadable as of July 29th of this 2014 year. This also means it will no longer be supported. The official notice can be found HERE. Continue reading