Using Light-O-Rama to create holiday light shows

If you want to have a holiday light show that will back up traffic and make people of all ages smile (except Grinches and Scrooges), then you might be interested in Light-O-Rama. It’s been used by contestants in the Great Light Fight and was running behind the scenes of the first viral video of Christmas lights to Wizards in Winter. Incidentally, it took the electrical engineer who set up that light show about two months and 16,000 lights; for each minute of the song, it took him about one hour to sequence 88 Light-O-Rama channels. One LOR hardware controller generally has 16 channels.To read this article in full or to leave a comment, please click here

Dell admits installing security hole on laptops, apologizes, offers fix

Dell acknowledges a root certificate it installed on its laptops was a bad idea and is pushing a patch to permanently remove it.In a blog post company spokesperson Laura Thomas says eDellRoot was installed as a support tool to make it faster and easier for customers to service the devices. But some of those customers discovered the certificate and recognized it as a serious security threat.To read this article in full or to leave a comment, please click here

Blogging Rule#1: Be Useful

I love stumbling upon new networking-focused blogs. Many of my old friends switched to the dark side vendors and stopped blogging, others simply gave up, and it seems like there aren’t that many engineers that would like to start this experiment.

One of the obvious first questions is always “what should I write about” and my reply is always “it doesn’t really matter – make sure it’s useful.”

Read more ...

As China moves to payment cards, cybercriminals follow

As China increasingly embraces payment cards over cash, Trend Micro is seeing an uptick in cybercriminal activity aimed at card fraud. The security company published a new study of the Chinese underground cybercriminal market, which shows a strong interest in ways to capture payment card details. "Cybercriminals quickly jumped on the noncash payment bandwagon," wrote report author Lion Gu of Trend Micro's Forward-Looking Threat Research Team. The market for such tools has been strong in countries that heavily use payment cards, so it's probably not surprising that the trade would rise in China.To read this article in full or to leave a comment, please click here

Dell security error widens as researchers dig deeper

The fallout from a serious security mistake made by Dell is widening, as security experts find more issues of concern.Researchers with Duo Security have found a second weak digital certificate in a new Dell laptop and evidence of another problematic one circulating.The issue started after it was discovered Dell shipped devices with a self-signed root digital certificate, eDellRoot, which is used to encrypt data traffic. But it installed the root certificate with the private encryption key included, a critical error that left many security experts aghast.To read this article in full or to leave a comment, please click here

Dell installs self-signed root certificate on laptops, endangering users’ privacy

Dell laptops are coming preloaded with a self-signed root digital certificate that lets attackers spy on traffic to any secure website.The reports first surfaced on Reddit and were soon confirmed by other users and security experts on Twitter and blogs. The root certificate, which has the power of a certificate authority on the laptops it's installed on, comes bundled with its corresponding private key, making the situation worse.With the private key, which is now available online, anyone can generate a certificate for any website that will be trusted by browsers such as Internet Explorer and Google Chrome that use the Windows certificate store on affected laptops. Security experts have already generated proof-of-concept certificates for *.google.com and bankofamerica.com.To read this article in full or to leave a comment, please click here

Peak Fibre Channel

There have been several articles talking about the death of Fibre Channel. This isn’t one of them. However, it is an article about “peak Fibre Channel”. I think, as a technology, Fibre Channel is in the process of (if it hasn’t already) peaking.

There’s a lot of technology in IT that doesn’t simply die. Instead, it grows, peaks, then slowly (or perhaps very slowly) fades. Consider Unix/RISC. The Unix/RISC market right now is a caretaker platform. Very few new projects are built on Unix/RISC. Typically a new Unix server is purchased to replace an existing but no-longer-supported Unix server to run an older application that we can’t or won’t move onto a more modern platform. The Unix market has been shrinking for over a decade (2004 was probably the year of Peak Unix), yet the market is still a multi-billion dollar revenue market. It’s just a (slowly) shrinking one.

I think that is what is happening to Fibre Channel, and it may have already started. It will become (or already is) a caretaker platform. It will run the workloads of yesterday (or rather the workloads that were designed yesterday), while the workloads of today and tomorrow have a vastly different set of Continue reading

Dell computers shipping with potentially dangerous root certificate authority

At least some Dell laptops are shipping with a trusted root certificate authority pre-installed, something that those who discovered the CA are comparing to the Superfish adware installed on Lenovo machines that left them open to man-in the-middle attacks. Called eDellRoot, the trusted root CA comes as part of the standard software load on new Dell machines. A Reddit contributor who uses rotocowboy for a screen name says the implications could be dire. “For those that are unfamiliar with how this works,” he writes, “a network attacker could use this CA to sign his or her own fake certificates for use on real websites and an affected Dell user would be none the wiser unless they happened to check the website's certificate chain. This CA could also be used to sign code to run on people's machines, but I haven't tested this out yet.”To read this article in full or to leave a comment, please click here

Some notes on the eDellRoot key

It was discovered this weekend that new Dell computers, as well as old ones with updates, come with a CA certificate ("eDellRoot") that includes the private key. This means hackers can eavesdrop on the SSL communications of Dell computers. I explain how in this blog post, just replace the "ca.key" with "eDellRoot.key".

If I were a black-hat hacker, I'd immediately go to the nearest big city airport and sit outside the international first class lounges and eavesdrop on everyone's encrypted communications. I suggest "international first class", because if they can afford $10,000 for a ticket, they probably have something juicy on their computer worth hacking.

I point this out in order to describe the severity of Dell's mistake. It's not a simple bug that needs to be fixed, it's a drop-everything and panic sort of bug. Dell needs to panic. Dell's corporate customers need to panic.

Note that Dell's spinning of this issue has started, saying that they aren't like Lenovo, because they didn't install bloatware like Superfish. This doesn't matter. The problem with Superfish wasn't the software, but the private key. In this respect, Dell's error is exactly as bad as the Superfish error.

Microsoft CEO takes a collaborative approach to cybersecurity

Satya Nadella will have you know that cybersecurity takes a village.The Microsoft CEO took to the stage this week in the nation's capital to describe a new, collaborative approach the company is taking as it deals with an evolving set of digital threats targeting an increasingly distributed tangle of users, devices and systems.[ Related: CISOs learn 5 tough lessons about conveying security risks ]Nadella positions the cyber challenge as the latest entry on a continuum of threats that have emerged with new methods of communication, recalling the emergence of mail fraud and wire fraud, and calling cyber "one of the most pressing issues of [our] time."To read this article in full or to leave a comment, please click here

Adware program Vonteera blocks security products with simple Windows UAC trick

A well-known adware program is preventing users from installing antivirus products by leveraging a Windows feature that was designed for security.The program, known as Vonteera, abuses the digital signature check performed by the Windows User Access Control (UAC) for executable files.UAC prompts users for confirmation whenever a program wants to make a system change that requires administrator-level privileges. It therefore prevents malware from silently gaining full system access if executed from a limited user account.Depending on whether an executed file is digitally signed by a trusted publisher, the UAC displays confirmation prompts indicating different levels of risk. For example, if the file is unsigned, or is signed with a self-generated certificate that Windows can't link back to a trusted certificate authority, the UAC prompt will have a yellow exclamation mark.To read this article in full or to leave a comment, please click here

1 … 3,203 3,204 3,205 3,206 3,207 … 3,808