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Cybersecurity / Most Viewed

Is DNSSEC Worth the Effort?

A blog post has created some attention online through its extremely negative attitude to DNSSEC. Through the years, I have come in contact with many arguments against DNSSEC that suggest that anyone who is critical has not managed to or wanted to familiarize themselves with what DNSSEC is and does. We have received many questions concerning the article, so I feel it's appropriate to respond to the criticism. more

Memo to John Markoff: There are No “Do Overs” in History

Think for a moment of the enduring legacy of African slavery in America. Think of the way it tainted this country's culture and politics; think of the bloody Civil War, the ghettos... What if we could roll back the clock and ensure that our society was "designed" so that slavery was never permitted and never happened? ... But what if I told you that my computer science lab was working on a "new Internet" that would solve all the terrible security and privacy problems of the existing one? Would you find this claim more credible than a proposed retroactive solution to the problem of slavery? more

The Kaljarund Commission: Building Bridges Over Troubled Cyber-Water

There was one message which overshadowed all discussions at the 5th Global Conference on Cyber Space (GCCS) in New Delhi in November 2017: Instability in cyberspace is as dangerous as climate change. With four billion Internet users and five trillion dollars annually in digital transactions, instability in cyberspace has the potential to ruin the world. more

Senate Judiciary Committee Hearing on Botnet Takedowns (July 15, 2014)

The background is of course quite interesting, given how soon it has followed Microsoft's seizure of several domains belonging to Dynamic DNS provider no-ip.com for alleged complicity in hosting trojan RAT gangs, a couple of days after which the domains were subsequently returned -- without public comment -- to Vitalwerks, the operator of No-IP. This is by no means a new tactic for Microsoft, who has carried out successful seizures of various domains over the past two or three years. more

Microsoft Takes Legal Action Against North Korean Cybercrime Group, Takes Down 50 Domains

Microsoft has taken control of 50 domains used by a North Korean cybercrime group dubbed "Thallium" to steal information from users, including government employees, think tanks, university staff members, and those working on nuclear proliferation issues. more

Microsoft, Federal Agencies Take Down Rustock Botnet

Neil Schwartzman writes: "There is a lot of press on the profound effect the take-down of the Rustock botnet, affected by Microsoft, some U.S. federal agencies, and countless others working in the background to assist in the effort. CAUCE has aggregated a few of the best stories and data-points. A community congratulations, and thank-you to all those involved!" more

Hannaford Data Breach Plaintiffs Rebuffed in Maine

A US District Judge in Maine largely granted a motion to dismiss brought by Hannaford in a big data breach case... According to the court, around March 2008, third parties stole up to 4.2 million debit and credit card numbers, expiration dates, security codes, PIN numbers, and other information relating to cardholders "who had used debit cards and credit cards to transact purchases at supermarkets owned or operated by Hannaford." more

FON and BT: Wifi Today; Mobile Tomorrow?

A deal announced today between British Telecom and upstart FON allows BT's Internet customers to share their own broadband connections via WiFi and, in turn, be able to access WiFi free at "thousands" (doesn't say how many) of FON hotspots around the world operated by other Foneros... When you buy home Internet access from BT and opt into this plan, you are also buying roaming access at no extra charge. The technology is supposed to assure that the part of the connection which you share is segregated from your own access so that there are no security problems caused by the sharing. more

Thoughts on IPv6 Security, Take Two

A few months ago, I made a post about IPv6 security. I've caught some flak for saying that IPv6 isn't a security issue. I still stand by this position. This is not to say that you should ignore security considerations when deploying IPv6. All I claim is that deploying IPv6 in and of itself does not make an organization any more or less secure. This point was made by Dr. Joe St. Sauver, of the University of Oregon... more

Shouting ‘Bug’ on a Crowded Internet…

In the last few weeks we've seen two very different approaches to the full disclosure of security flaws in large-scale computer systems. Problems in the domain name system have been kept quiet long enough for vendors to find and fix their software, while details of how to hack Transport for London's Oyster card will soon be available to anyone with a laptop computer and a desire to break the law. These two cases highlight a major problem facing the computing industry, one that goes back many years and is still far from being unresolved. Given that there are inevitably bugs, flaws and unexpected interactions in complex systems, how much information about them should be made public by researchers when the details could be helpful to criminals or malicious hackers? more

Ensuring Maximum Resilience to the DNS?

Yesterday CommunityDNS noticed a sudden, heavy spike in traffic through its Anycast node in Hong Kong. While comfortably processing queries at 863,000 queries per second for close to 2 hours the occurrence was undeniable. While we can't say the increase in traffic was specifically due to DDoS, its sudden increase is suspicious and reminds us that DDoS is still a popular tool used by the malicious community. more

Overcoming Cloud Storage Security Concerns: 7 Key Steps

According to a 2013 TwinStrata survey, 46 percent of organizations use cloud storage services and 38 percent plan to adopt this technology in the near future. Cloud storage capacity demands are increasing 40 to 60 percent year-over-year, while storage density lags behind at 20 percent. The result? More data, growing demands for space and increasing security concerns. How do enterprises overcome cloud storage security challenges? more

Writing the Next Chapter for the Historic One-Time Pad

The OTP, or One-Time Pad, also known as the Vernam cipher, is, according to the NSA, "perhaps one of the most important in the history of cryptography." If executed correctly, it provides uncrackable encryption. It has an interesting and storied history, dating back to the 1880s, when Frank Miller, a Yale graduate, invented the idea of the OTP. Communication was expensive and difficult in the age of telegrams, and few messages were easily encrypted. more

Watching North Korea’s Internet Connectivity Go Up and Down Via Twitter

One thing I enjoy about following Dyn Research (formerly Renesys) on Twitter is that they provide quite interesting graphics and charts about Internet outages. They've been tracking North Korea's Internet access quite closely over the past week and their tweets have been quite enlightening. Back on December 22, for instance, DynResearch tweeted a chart showing a 9-hour, 31-minute outage... more

Why DNS Is Broken, Part 1: Trust

So this Internet thing, as we discussed in our last article, is broken. I promised to detail some of the specific things that are broken. Implicit trust is the Achilles heel of the Internet... All of the communication between the resolver and the DNS server is in plain text that can be easily seen and changed while in transit, further, the resolver completely trusts the answer that was returned... more