Cybersecurity

Preventing DNS Strain When You Deploy DNSSEC

The barriers to DNSSEC adoption are quickly disappearing. There are nearly 20 top-level domains that have already deployed DNSSEC including generic TLDs like .org and .gov. This July, the DNS root will also be signed, and will begin validating. At this point, the decision for remaining TLDs to deploy DNSSEC is really no longer a question. more

Cyberattacks Listed as High-Impact Threat to North American Electric Grid

In a report released today by The North American Electric Reliability Corporation (NERC) and the U.S. Department of Energy (DOE), cyber attacks are among the top high-impact risks -- "with potential to significantly affect the reliability of the North American bulk power system." Certain protections and mitigations are already in place to address these risks, and this study has been released to help public utility commissions, and the federal government to further prepare for these potential risks. more

The Extent of DNS Services Being Blocked in China

The most recent episode of The Ask Mr. DNS Podcast offers up some disturbing corroborating evidence as to the extent of DNS filtering and outright blocking occurring in China. VeriSign's Matt Larson and InfoBlox's Cricket Liu, who co-host the geeky yet engaging and extremely informative show, held a roundtable discussion including technical experts from dynamic name service providers (better known as "managed DNS" services) DynDNS, TZO, No-IP, and DotQuad, as well as Google and Comcast. more

Study Reveals 76% of Internet Users Vulnerable to Browser History Detection

A recent study reveals a browser history detection method, largely dismissed as an issue with minimal impact, can in fact be used against a vast majority of Internet users with significant malicious potential. Researchers, Artur Janc and Lukasz Olejnik, analyzed real-world results obtained from 271,576 Internet users and have reported the results in a paper titled, "Feasibility and Real-World Implications of Web Browser History Detection". more

Malware and Search Warrant

A recent decision from a federal district court addresses an issue I hadn't seen before: whether searching malware on the suspect's computer was outside the scope of the search warrant issued for that computer. It seems a narrow issue, and unfortunately the opinion issued in the case doesn't tell us a whole lot about what happened; but I thought the issue was worth writing about, if only to note that it arose. more

More Stepping Stones Before This Summer’s Seminal DNSSEC Events

The deployment of Domain Security Extensions (DNSSEC) has crossed another milestone this month with the publication of DURZ (deliberately unvalidatable root zone) in all DNS root servers on 5 May 2010. While this change was virtually invisible to most Internet users, this event and the remaining testing that will occur over these next two months will dictate the ultimate success of DNSSEC deployment across the Internet. more

ICANN Hires Cryptography Legend Whit Diffie

Pioneering cryptographer Whitfield 'Whit' Diffie has joined the Internet Corporation for Assigned Names and Numbers (ICANN) as Vice President for Information Security and Cryptography. Diffie will provide advice on general security matters related to ICANN's mandate, and to ICANN in the design, development and implementation of security methods for ICANN-managed networks. He will oversee the continuous improvement and 'best practices' process for information security and cryptography. more

No Cyberattack on Wall Street

In case you missed it, last Thursday, May 6, we saw a remarkable day on the stock markets. The day started off with some selling which went down neat and orderly. Suddenly, around 2:40 pm eastern time, the market started selling off rapidly taking huge hits in in the span of 30 minutes. It was an incredible ride and at one point, the Dow Jones average was off 1000 points for the day, the largest drop in history (though not the largest percentage drop). It was kind of like October of 1987. more

FBI Pushing Enforcement Action Against Money Mules

Brian Krebs reporting on the Krebs on Security blog: "The FBI's top anti-cyber crime official today said the agency is planning a law enforcement action against so-called 'money mules,' individuals willingly or unwittingly roped into helping organized computer crooks launder money stolen through online banking fraud." more

ICANN Security Team Reports on Conficker Post-Discovery Analysis

A paper released today by ICANN provides a chronology of events related to the containment of the Conficker worm. The report, "Conficker Summary and Review," is authored by ICANN's Dave Piscitello, Senior Security Technologist on behalf of the organization's security team. more

How to Place Top-Level Domain Trust Anchors in the Root

The project to sign the DNS root zone with DNSSEC took an additional step toward completion yesterday with the last of the "root server" hosts switching to serving signed DNSSEC data. Now every DNS query to a root server can return DNSSEC-signed data, albeit the "deliberately unvalidatable" data prior to the final launch. Another key piece for a working signed root is the acceptance of trust anchors in the form of DS records from top-level domain operators. These trust anchors are used to form the chain of trust from the root zone to the TLD. more

DNSSEC Root Signature, Almost There!

IT security specialists have known for years that the plain DNS is not to be trusted. Any hope for improvement rests on the DNSSEC protocol deployment. In this post, I will review the current status in one critical aspect, namely the DNS root signature key management. The other two foremost are the application usage of DNSSEC protocol functionality and the operational front, or the extent of deployment in the DNS infrastructure. The operational front includes the support by the DNS root nameservers, but my focus on signature key management leaves this issue aside. more

Tackling Cyber Security: Should We Trust the Libertarians?

One of the RSS feeds that I read is Reason magazine, which is a web site for libertarians. In general, libertarians want less government intervention both in our personal lives and in the economy. The idea behind libertarians is that today's Republicans want less government intervention in our economy but are perfectly fine to have them dictate some aspects of morality. Similarly, today's Democrats want less government intervention in our personal lives but are perfectly fine with creating government bureaucracy to deliver social services. That's an oversimplified summary, but is more or less correct. About two months ago I got an article in my RSS feed where Reason was commenting on the government's response to the cyber war threats. more

EU’s Cyber Security Agency Identifying Five Areas as Critical IT Security

The EU's 'cyber security' Agency ENISA (The European Network and Information Security Agency) has launched a new report concluding that the EU should focus its future IT security research on five areas: cloud computing, real-time detection and diagnosis systems, future wireless networks, sensor networks, and supply chain integrity. more

First Internet War from a Social Psychological Perspective

The month-long series of coordinated attacks against Estonia's Internet in 2007 that shutdown websites of Estonia's government, those of its officials, banks and news agencies are believed to be based by various physiological principles including anonymity and contagion. more