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
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
We've gotten a glimpse of the challenges of marketing faster cellular usage since the two major cellular providers in South Korea made a big push in offering ultrafast cellular broadband. South Korea has two primary cellular carriers – SK Telecom and KT – and both have implemented cellular products using millimeter wave spectrum in Seoul and other dense urban areas. more
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
The map below shows countries working with Huawei 5G in red and pink. As can be seen, Huawei is doing very well in 5G, although it's not as dominant as the colors here suggest. Ericsson is actually close to Huawei in 5G revenue, aided by the ban in the US and Australia. Years ago, Huawei was the price leader in order to break into the European market. more
Domain Names composed of generic terms and combinations – dictionary words, random letters, and short strings – have achieved ascending values in the secondary market. DNJournal.com (Ron Jackson) reports on his year to date chart, for example (just a random sampling from the charts) in August 2019 joyride.com was sold for $300,000, in June voice.com sold for $30 million, in July rx.com sold for $1 million, and in January california.com sold for $3 million... The magnitude of the reported sales suggests that businesses have come to depend on resellers than go to the trouble of inventing brand names from scratch. more
One of the most interesting aspects of the proposed merger of Sprint and T-Mobile is that the agreement now includes selling some of Sprint's spectrum to Dish Networks to enable them to become a 5G cellular provider. This arrangement is part of the compromise required by the Department of Justice to preserve industry competition when the major wireless carriers shrink from four to three. more
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
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
Apropos of recent news stories about a blockchain-based voting system that was hacked before its first election, someone asked: "Perhaps final recognition that a lot of blockchain is hype? Or simply an interesting side-story?" A blockchain can ensure that the lies you see are the same lies that were published, but that doesn't have much to do with voting. more
Last May, Cuba's Ministry of Communication (MINCOM) announced resolutions 98 and 99 limiting wireles stransmission power and outdoor cables that made community networks like Havana's SNET, illegal. Since SNET was the world's largest community network that did not have Internet access, implementation of the resolutions was postponed for 60 days for negotiations between SNET administrators and MINCOM. more
Hootsuite is the premier tracker of social media usage around the world. They publish numerous reports annually that track broadband statistics and social media statistic from around the world. They report the following statistics for the end of 2018. The world has been seeing one million new users online every day since January 2018. That means there are 11 new users on the web every second. There are now 5.11 billion mobile subscribers in the world, 67% of the world's population. more
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
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
The remarkable take rate in Korea and China is invalidating almost all projections of 5G subscriptions. The 5G promotion has consumers wanting to buy, buy, buy. Huawei Mate 20 5G is selling for only US$30 more than the 4G model. At that price, who would want to buy a 4G phone that could be obsolete in a year or two? In the first two weeks of sale, over a million Chinese bought Huawei's 5G phone. more
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