Cybersecurity

DoH Creates More Problems Than It Solves

Unlike most new IETF standards, DNS over HTTPS has been a magnet for controversy since the DoH working group was chartered on 2017. The proposed standard was intended to improve the performance of address resolutions while also improving their privacy and integrity, but it's unclear that it accomplishes these goals. On the performance front, testing indicates DoH is faster than one of the alternatives, DNS over TLS (DoT). more

What is a Security Mechanism?

Orin Kerr recently blogged about a 9th Circuit decision that held that scraping a public web site (probably) doesn't violate the Computer Fraud and Abuse Act (CFAA)... On its surface, it makes sense – you can't steal something that's public – but I think the simplicity of the rule is hiding some profound questions. One, I believe, can most easily be expressed as "what is the cost of the 'attack'"? That is, how much effort must someone expend to get the data? Does that matter? Should it? more

IGF Best Practice Forums, an Opportunity to Bring Your Experience to the Policy Debate

In the run-up to the 14th Internet Governance Forum in Berlin, Germany, 25 to 29 November, different groups are discussing best practices pertaining to specific internet governance policy questions. These groups are open and thrive on your input and experiences. Their findings will be presented at the IGF and published shortly after. The IGF Best Practice Forums intend to inform internet governance policy debates by drawing on the immense and diverse range of experience and expertise... more

DNS-over-HTTPS: Privacy and Security Concerns

The design of DNS included an important architectural decision: the transport protocol used is user datagram protocol (UDP). Unlike transmission control protocol (TCP), UDP is connectionless, stateless, and lightweight. In contrast, TCP needs to establish connections between end systems and guarantees packet ordering and delivery. DNS handles the packet delivery reliability aspect internally and avoids all of the overhead of TCP. There are two problems this introduces. more

How Domain Data Helps Thwart BEC Fraud

It's true, domain data has many practical uses that individuals and organizations may or may not know about. But most would likely be interested in how it can help combat cyber threats, which have been identified as the greatest risks businesses will face this year. Dubbed as the greatest bane of most organizations today, cybersecurity can actually be enhanced with the help of domain data. How? more

5G Real Security Threats Lost in Trump’s Twitter Diplomacy

A new report on 5G and geopolitics by Oxford Information Labs details the complex landscape of 5G security. Importantly, it draws out how a variety of proven technical concerns around the quality of Huawei security practices and equipment are drowned out by the US' Twitter diplomacy. Critical international dialogue on genuine cybersecurity concerns relating to 5G and Huawei are being lost in the noise of the US-China trade war. more

Business Email Compromised (BEC) Scams Explode Under the GDPR Implementation

Business email compromised (BEC) attacks targeting American companies are exploding, with an increase of over 476% in incidents between Q4 2017 and Q4 2018. Up as well is email fraud with companies experiencing an increase of over 226%. These highly targeted attacks use social engineering to identify specific company employees, usually in the finance department and then convince these employees to wire large sums of money to third-party banking accounts owned by the attackers. more

DoT and DoH Guidance: Provisioning Resolvers

As part of a larger effort to make the internet more private, the IETF defined two protocols to encrypt DNS queries between clients (stub resolvers) and resolvers: DNS over TLS in RFC 7858 (DoT) and DNS over HTTPS in RFC 8484 (DoH). As with all new internet protocols, DoT and DoH will continue to evolve as deployment experience is gained, and they're applied to more use cases. more

Proactive Cybersecurity: What Small Businesses Can Actually Do

In the business world, there are two main paths a company can take with cybersecurity -- the reactive and the proactive approach. The problem with a purely reactive attitude is that it can easily put companies in constant firefighting mode. And for small companies with limited resources, this can turn out to be an increasingly uncomfortable place to be in.
With that in mind, experts today suggest proactive cybersecurity by monitoring suspicious activity and identifying risks before they turn into full-blown attacks. more

Threat Intelligence in Latter 2019: Overcoming the Same and New Challenges

Does threat intelligence (TI) work? I looked into that question last year, exploring the reasons why it actually doesn't and what can be done to remediate the situation. Since then, more companies have incorporated TI into their security processes, and many are still not getting the benefits they expect. What's causing the dissatisfaction? Interestingly, pretty much the same aspects... more