Wednesday, August 9, 2017
Hackers could target electricity grids through security flaws in solar panel (for example: SUNJACK 20W PORTABLE SOLAR CHARGER ) equipment, a Dutch researcher has said.
Willem Westerhof found 17 vulnerabilities in inverters, which convert electricity produced by the panels so it can be used on the grid.
He said internet-connected inverters could be targeted by hackers.
One manufacturer said that only "a small fraction" of its devices were affected.
After discovering vulnerabilities in devices produced by a range of manufacturers, Mr Westerhof carried out a field test near Amsterdam on two inverters made by SMA.
He told the BBC the test showed it would be possible for an attacker to remotely control the devices and alter the flow of power.
Because energy equipment on the grid needs to balance supply with demand, overloading the system could result in a power cut.
"If an attacker does that on a large scale, that has serious consequences for the power grid stability," said Mr Westerhof.
Energy researcher Iain Staffell, at Imperial College London, told the BBC, "It's certainly a risk to electricity supply and could stress grid operations."
However, he did not believe it could cause blackouts and he pointed out that a large number of inverters would have to be attacked at once for any significant effect to occur.
SMA responded by pointing out the limitations to such an attack:
only four of its models are affected by the vulnerabilities
users are advised to change default passwords when installing the devices, though this is not required
inverters not connected to the internet are safe
"The security of our devices has highest priority for SMA in all respects," the company said in a statement.
"We already assessed the mentioned issues on a technical basis and [are working] intensively on the correction."
It added that it would publish further responses to Mr Westerhof's research in the coming days and that it was working on a report about the security of its products with the Dutch National Cyber Security Centre.
Asking users to change passwords was a way of pushing liability away from the manufacturer, said cyber-security researcher Tom van de Wiele, at F-Secure.
"The vulnerabilities are real," he said, though he agreed with SMA that not all inverters would be open to attack.
"Just because you bought one of their products and a solar array, [it does not mean] that you are vulnerable."
He added that he had seen similar security issues in other industrial products.
Mr Westerhof discovered the security flaws while working on his undergraduate thesis and detailed the research in a talk at the SHA2017 security conference in the Netherlands on Monday.
He said he had decided not to release full details of potential attacks on the inverters, to avoid encouraging malicious hackers.
"Solar producers should seek to isolate the products from the internet ASAP," said Dave Palmer, director of technology at cyber-security company Darktrace.
"And [they should] also review their physical access security to reduce the risk of a local attack from someone physically breaking into their facilities."
Friday, May 19, 2017
Supplements that are called natural routinely have a higher information of minerals and vitamins, which is why they're getting thus well-received. Dangerous alloys, including mercury, direct, and metal, are observed in significantly small amounts set alongside the no-natural nutritional vitamin supplements.
Numerous herbal medicines are greatest for that health of these who consider them-and work-in numerous methods to assist particular health problems and conditions. As the natural and organic complement tablets are usually the ones that are consumed, it may be definitely better to make use of the fluid selection since these are easier for that body to digest.
Not everybody will need to make use of a supplement to be able to remain healthy; nevertheless there are numerous conditions where in actuality organic supplements, nutrients, and herbs works for their optimum degree. Those people who are operating towards muscle building will discover they need the natural products to be able to create your body within the littlest period of time.
Whenever various conditions occur, natural products may be used properly. Most of the herbs and nutrients included inside the health supplements can perhaps work to alleviate again vexation, complications, along with a quantity of additional distressing medical conditions. This really is particularly true once the discomfort exists due to a shortage of the specific nutritional within the physique. Those people who are hypersensitive to a lot of of the artificial elements that are often contained in no-natural products will discover the natural choice to be always a excellent answer to get the necessary supplements to get a vibrant existence.
The fluid supplements-are usually the ones that are recommended with a physician because they are the absolute most focused. These natural supplements-are usually employed for particular problems, therefore talking to a health care provider that utilizes naturopathic techniques could possibly be the easiest way to find the products which are required for the healthier lifestyle.
at May 19, 2017
Tuesday, March 28, 2017
You’ve invested time and money into building your small business website, but are you getting the website conversions that you need? It doesn’t matter if you want those conversions to be closed sales, downloaded ebooks, newsletter subscriptions, or something else. The recommendations included in this article will help you boost those conversions.
Your website is an important marketing tool as well as a sales tool (whether or not you’re directly or indirectly selling your products or services on your small business website). That means your site has to be designed and written in a way that helps your visitors take the necessary conversion paths. The 10 tips below are easy to implement yet extremely effective in boosting website conversions.
Thursday, March 9, 2017
Choosing a business partner is a big decision — really, really big. This is the person you’ll work closely with for years to come if you’re successful, but you won’t have a chance of reaching your goals if you and your business partner are not the right match.
As business partners, you’ll be tied to each other. Decisions made by one partner will directly affect not just the business but the other partner as well. It’s like a marriage because you’re in it together, and the actions of one equate to the actions of both. You can’t say, “That wasn’t me – it was my business partner.”
With that in mind, how do you pick the right business partner? My first recommendation is to move slowly and purposefully. Don’t jump into a relationship because it can be hard to get out of it unscathed if things don’t work out later. To choose the right business partner for your entrepreneurial venture, follow these five critical steps:
Tuesday, February 28, 2017
There’s a major misconception about the life of a business traveller. While most believe there’s nothing better than frequently living out of a suitcase, jet setting to exotic locations, and schmoozing with the big wigs over fancy dinners, the reality speaks a different truth. The drab airport lounges, long haul flights, never-ending jetlag, constant streams of work, coupled with fleeting moments with your family while you attempt to recover from your trip before you head out the door for the next one – that’s the reality. Feeling like you’re in a continuous juggling act with your work, travel, and home life can turn you into a massive ball of stress, so how do you take a step back and manage it all?
Hackers could target electricity grids through security flaws in solar panel (for example: SUNJACK 20W PORTABLE SOLAR CHARGER ) equipm...
Supplements that are called natural routinely have a higher information of minerals and vitamins, which is why they're getting thus ...
Choosing a business partner is a big decision — really, really big. This is the person you’ll work closely with for years to come if you...
You’ve invested time and money into building your small business website, but are you getting the website conversions that you need? It ...