Cybersecurity

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How to Evaluate Performance of a DNS Resolver

Ten years ago everyone evaluating DNS solutions was always concerned about performance. Broadband networks were getting faster, providers were serving more users, and web pages and applications increasingly stressed the DNS. Viruses were a factor too as they could rapidly become the straw that broke the camel's back of a large ISP's DNS servers. The last thing a provider needed was a bottleneck, so DNS resolution speed became more and more visible, and performance was everything. more

Into the Gray Zone: Considering Active Defense

Most engineers focus on purely technical mechanisms for defending against various kinds of cyber attacks, including "the old magic bullet," the firewall. The game of cannons and walls is over, however, and the cannons have won; those who depend on walls are in for a shocking future. What is the proper response, then? What defenses are there The reality is that just like in physical warfare, the defenses will take some time to develop and articulate. more

Trump Names Former Bush Aide Thomas Bossert Chief Adviser on Cybersecurity, Counterterrorism Role

President-elect Donald J. Trump has named Thomas P. Bossert, a top national security aide under President George W. Bush, to be his homeland security adviser, the Trump transition team announced Tuesday morning," Michael D. Shear reporting in the New York Times. more

Defending Against the Hackers of 1995

Two factor authentication that uses an uncopyable physical device (such as a cellphone or a security token) as a second factor mitigates most of these threats very effectively. Weaker two factor authentication using digital certificates is a little easier to misuse (as the user can share the certificate with others, or have it copied without them noticing) but still a lot better than a password. Security problems solved, then? more

WikiLeaks Releases CIA Malware Implants Called Assassin and AfterMidnight

The recent heavy news coverage of WannaCry has overshadowed the latest WikiLeaks release of critical CIA malware documentation: user manuals for two hacking tools named AfterMidnight and Assassin. more

Researchers Demonstrate Serious Privacy Attacks on 4G and 5G Protocols

A group of academic researchers have revealed a design weakness in the 4G/5G protocol which can be exploited by an attacker to identify the victim's presence in a particular cell area just from the victim's soft-identity such as phone number and Twitter handle. more

Iran Among Countries Affected by a Cyberattack That Left U.S. Flag on Screens

A hacking incident over the weekend attacked networks in a number of countries including data centers in Iran where they left the image of a U.S. flag on screens along with a warning: "Don't mess with our elections." more

Biden Administration Bans Kaspersky Software Over National Security Concerns

The Biden administration is set to prohibit the sale of Kaspersky Lab's antivirus software in the U.S., citing national security risks due to the company's ties to the Russian government. more

Airplanes Vulnerable to Hacking, Says U.S. Department of Homeland Security

Researchers have been able to successfully demonstrate a commercial aircraft can be remotely hacked. more

What’s in Your DNS Query?

Privacy problems are an area of wide concern for individual users of the Internet -- but what about network operators? Geoff Huston wrote an article earlier this year concerning privacy in DNS and the various attempts to make DNS private on the part of the IETF -- the result can be summarized with this long, but entertaining, quote. more

IoT Botnet Source Code Responsible for Historic Attack Has Been Publicly Released

The source code for the IoT botnet 'Mirai' has been released," warns security expert Brian Krebs whose own website was targeted with the same botnet resulting in the historically large DDoS attack last month. more

Keep Your Pants On: Governments Want Suspenders for Secure Routing

The difficulty of applying a hierarchically organized PKI to the decentralized world of Internet routing is being fully exposed in a new Internet-draft. The document represents a rational response to an RPKI that closely ties address resources to a handful of Internet governance institutions, nicely illustrates how governments and national security policy are influencing Internet security, and portends substantial costs for network operators and beyond if adopted widely more

Data Broker Reported to Have Exposed a Database Containing Close to 340 Million Individual Records

A data broker based in Palm Coast, Florida, is reported to have exposed a database that contained close to 340 million personal records on a publicly accessible server. more

The Latest OEWG on ICTs Report: Thoughts and Recommendations

At the end of July, the Open-ended Working Group (OEWG) on ICTs -- which is currently discussing how states should and shouldn't behave in cyberspace - concluded its third meeting, which falls in the middle of its four-year mandate (ending in 2025). Below, we provide a summary of what happened, reflections on the outcomes and implications (the good and the bad), and some practical recommendations for stakeholders and governments to consider ahead of the next meeting. more

Mobile Malware Growing Exponentially, Limited Capability of Current Security Solutions Big Concern

Security analysis suggest troubling and escalating trends in the development of malware that exploits vulnerabilities on mobile devices. "From turning mobile devices into bots, to infiltration of mobile applications, driven by the use of personal devices in the workplace, cybercriminals are taking full advantage of this market," reports M86 Security Labs in its just released Threat Predictions Report. more