Amidst the fascinating news from the SCO saga, preparing for SANS London and contributing to the Unix timeline project at Grokline my eyes caught a piece of rather distressing news on the BBC. It appears that BT (British Telecom) intends to move its current phone network to an IP-based network by 2009 thereby sending the circuit-switched technology off to the attic. The real question is: can we guarantee the same level of reliability on VoIP as we had on circuit-switched telephony when the stated aim is to carry both voice and data traffic down the same cables (or fibres more likely)? more
In March 2013, Spamhaus was hit by a significant DDoS attack that made its services unavailable. The attack traffic reportedly peaked at 300Gbps with hundreds of millions of packets hitting network equipment on their way. In Q1 2015, Arbor Networks reported a 334Gbps attack targeting a network operator Asia. In the same quarter they also saw 25 attacks larger than 100Gbps globally. What is really frightening about this is that such attacks were relatively easy to mount. more
Cybercrime is costing businesses close to $600 billion, or 0.8 percent of global GDP, according to a report released today by McAfee, in partnership with the Center for Strategic and International Studies (CSIS). more
Who would have ever believed that .XXX would finally be approved AND launched, total domains registrations would continue to grow at 10% year over year, ICANN would be in the process of preparing for the launch of new gTLDs in the face of harsh criticism, and that both Go Daddy and Group NBT would be acquired by private equity firms. As we look back over the past year, here are the top 10 biggest domain stories of 2011. more
Apparently, at this stage, it is only a proposed ruling. But I am no lawyer. This story has been discussed before, when Spamhaus, which is located in the UK, was sued in the US by a spammer. They refused to come before the court as "they do no business in Illinois, and are located in the UK...After this court ruling, Spamhaus.org was under a DDoS attack, in my opinion for the purpose of preventing users from reaching the information it provided about the court ruling. This was done along-side a Joe Job, sending fake email appearing to come from Spamhaus's CEO... more
In this multipart series I will be presenting some of the leading industry-standard best practices for enterprise network security using Cisco technologies... In Part 3 of this series I began to discuss Cisco technologies as a standard for enterprise data security. In this article we take a look at how Cisco firewall and packet filtering technologies can be used at the network perimeter to enhance enterprise security. more
Although IPv6 DDoS attacks are not yet a common occurrence, there are indications that malicious actors have started testing and researching IPv6 based DDoS attack methods. more
Back in the early 2000s, several notable Internet researchers were predicting the death of the Internet. Based on the narrative, the Internet infrastructure had not been designed for the scale that was being projected at the time, supposedly leading to fatal security and scalability issues. Yet somehow the Internet industry has always found a way to dodge the bullet at the very last minute. more
Most people, even seasoned IT professionals, don't give DNS (the Domain Name System) the attention it deserves. As TCP/IP has become the dominant networking protocol, so has the use of DNS... Due to the reliability built into the fundamental RFC-based design of DNS, most IT professionals don't spend much time worrying about it. This can be a huge mistake! more
In many respects the internet is going to hell in a hand basket. Spam, phishing, DNS poisoning, DDoS attacks, viruses, worms, and the like make the net a sick place. It is bad enough that bad folks are doing this. But it is worse that just about every user computer on the net offers a nice fertile place for such ill behavior to be secretly planted and operated as a zombie under the control of a distant and unknown zombie farmer. ...Some of us are coming to the converse point of view that the net is being endangered by the masses of ill-protected machines operated by users. more
I previously provided a brief overview of how Verisign iDefense characterizes threat actors and their motivations through adversarial analysis. Not only do security professionals need to be aware of the kinds of actors they are up against, but they should also be aware of the tactical data fundamentals associated with cyber-attacks most commonly referred to as indicators of compromise (IOCs). Understanding the different types of tactical IOCs can allow for quick detection of a breach... more
In this newly released paper Randal Vaughn and Gadi Evron discuss the threat of Distributed Denial of Service (DDoS) attacks using recursive DNS name servers open to the world. The study is based on case studies of several attacked ISPs reported to have on a volume of 2.8Gbps. One reported event indicated attacks reaching as high as 10Gbps and used as many as 140,000 exploited name servers. more
Feb. 3, 2011, came and went without much fanfare, but it was a milestone for Internet stakeholders, whether they knew it or not. On that Thursday, the last available IPv4 addresses were allocated by the Internet Assigned Numbers Authority (IANA). Though some Regional Internet Registries (RIRs) have a reasonable inventory of IP addresses that could last another year or two, the days of "new" IPv4 address allocations are largely over. more
Akamai's Fourth Quarter, 2017 State of the Internet, was released today in which it states that the analysis of more than 7.3 trillion bot requests per month has found a sharp increase in the threat of credential abuse, with more than 40 percent of login attempts being malicious. more
The new gTLD program will have a profound impact on the private sector's increasing dominance over Internet information resources and ownership of critical registry technical infrastructure assets. It is already anticipated that only the private sector will take full advantage of the commercial possibilities... However, the successful introduction of new gTLDs will also create new challenges of security for the private sector. more
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