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Building IoT ventures from scratch by prototyping hardware devices and their backend systems as well as working for a large company that tries to sell IoT devices itself, we learned a lot about the pitfalls and problems concerning security in the IoT. Nearly every connected device out there proved to be vulnerable to attacks. Researchers showed that it's possible to remotely take control over autonomous vehicles, implanted medical devices were manipulated, voting machines compromised and of course all sorts of other "smart" devices... more
Ah yes, 'Security by obscurity': "Many people believe that 'security through obscurity' is flawed because... secrets are hard to keep." I'm glad the guys guarding the A Root Servers are up on the latest security trends. Of course, you could hide the A Root Servers at the heart of the Minotaur's maze, but they're still going to be "right over there" in cyberspace, at 198.41.0.29 more
As attack vectors go, very few are as significant as obtaining the ability to insert bespoke code in to an application and have it automatically execute upon "inaccessible" backend systems. In the Web application arena, SQL Injection vulnerabilities are often the scariest threat that developers and system administrators come face to face with (albeit way too regularly). more
As outlined in CSC's recent 2020 Domain Security Report: Forbes Global 2000 Companies, cybercriminals are disrupting organizations by attacking the protocol responsible for their online presence -- their domain name system (DNS). When a DNS is overwhelmed with traffic due to a distributed denial of service (DDoS) attack or configuration error, content and applications become inaccessible to users, affecting both revenue and reputation. more
ICANN has been wrangling about WHOIS privacy for years. Last week, yet another WHOIS working group ended without making any progress. What's the problem? Actually, there are two: one is that WHOIS privacy is not necessarily all it's cracked up to be, and the other is that so far, nothing in the debate has given any of the parties any incentive to come to agreement. The current ICANN rules for WHOIS say, approximately, that each time you register a domain in a gTLD (the domains that ICANN manages), you are supposed to provide contact information... WHOIS data is public, and despite unenforceable rules to the contrary, it is routinely scraped... more
Where is the domain industry with the adoption of DNSSEC? After a burst of well publicized activity from 2009-2011 -- .org, .com, .net, and .gov adopting DNSSEC, roots signed, other Top-Level Domains (TLDs) signed -- the pace of adoption appears to have slowed in recent years. As many CircleID readers know, DNSSEC requires multiple steps in the chain of trust to be in place to improve online security. more
A recent survey conducted by the Neustar International Security Council confirmed the heightened interests on domain name system (DNS) security. The survey reveals that over three-quarters of cybersecurity professionals anticipate increases in DNS attacks, especially with more people shopping online amid the pandemic. Yet, close to 30% have reservations about their ability to respond to these attacks. more
For those who've been living in an e-mail free cave for the past year, phishing has become a huge problem for banks. Every day I get dozens of urgent messages from a wide variety of banks telling me that I'd better confirm my account info pronto. ...Several people have been floating proposals to extend authentication schemes to the URLs in a mail message. A sender might declare that all of links in it are to its own domain, e.g., if the sender is bigbank.com, all of the links have to be to bigbank.com or maybe www.bigbank.com. Current path authentication schemes don't handle this, but it wouldn't be too hard to retrofit into SPF. ...So the question is, is it worth the effort to make all of the senders and URLs match up? more
A new company called Blue Security purports to have an innovative approach to getting rid of spam. I don't think much of it. As I said to an Associated Press reporter: "It's the worst kind of vigilante approach," said John Levine, a board member with the Coalition Against Unsolicited Commercial E-mail. "Deliberate attacks against people's Web sites are illegal." more
In those circles where Internet prognostications abound and policy makers flock to hear grand visions of the future, we often hear about the boundless future represented by "The Internet of Things". This phrase encompasses some decades of the computing industry's transition from computers as esoteric piece of engineering affordable only by nations, to mainframes, desktops, laptops, handhelds, and now wrist computers. Where next? more
Want to be a cybersleuth and track down hackers? It may sound ambitious considering that malevolent entities are extremely clever, and tracing them requires certain skills that may not be easy to build for the typical computer user. But then again, the best defense is offense. And learning the basics of sniffing out cybercriminals may not only be necessary nowadays, it has become essential for survival on the Web. So where can you begin? more
When a brand goes so far as to ask a domain name registrar for Whois (the registration contact details) of a potentially abusive domain name, there's likely a lot at stake. Most often, the request is prompted by consumer safety concerns, such as the risk to consumers posed by a malicious site. Other times, the demand has a simple goal: to have a dialog with the registrant about the use of trademarks or other intellectual property in order to avoid extreme action. more
If you analyze the relay of spam- and malware-containing email circulating on the Internet purely through your mail server logs (running the Unix command "tail"), a large proportion seem to come from Asia Pacific hosts, especially those from mainland China. Therefore, many less-experienced systems administrators have simply blocked the access from subnets of Chinese or Asian origin, effectively destroying the fabric of the Internet -- messaging. If administrators took pains to analyze these supposedly Asian spam messages by analyzing the full Internet headers, they would have realized that the Asian servers were merely used by the real spammers as open relays, or perhaps as zombie hosts previously infected with the mass mailing worms through the exploitation of operating system vulnerabilities. more
Two months ago, the Federal Bureau of Investigation (FBI) alerted the public to a list of domains that could easily be mistaken to be part of its network. The list of artifacts contained a total of 92 domain names, 78 of which led to potentially malicious websites, while the remaining 14 have yet to be activated or are no longer active as of 23 November 2020. more
Last week an ICANN registrar, Namejuice, went off the air for the better part of the day -- disappearing off the internet at approximately 8:30 am, taking all domains delegated to its nameservers with it, and did not come back online until close to 11 pm ET. That was a full business day and more of complete outage for all businesses, domains, websites, and email who were using the Namejuice nameservers -- something many of them were doing. more