Internet of Things is a term we are all hearing – but very few people know what it means, or know what the dangerous impacts it brings with it regarding security.
Something major happened in 2017. Internet of Things (IoT) devices were exploited by cybercriminals and turned into a rogue and malevolent army. A series of distributed denial of service (DDoS) attacks affected websites connected to the cloud-based internet performance management company Dyn, including Amazon, Twitter, Reddit, Spotify and PayPal. It’s was possibly a watershed moment.
Here are 10 things you need to know about IoT.
1. Wait, what’s IoT?
Definitions vary, but the ‘Internet of Things’ refers to ‘smart devices’ like refrigerators that will tell us when we’re out of milk. But also, many smaller less outlandishly smart objects, such thermostats, coffee machines and cars. These gadgets are embedded with electronics, software, sensors and network connectivity so that they can connect to the internet.
2. So, what’s the problem?
Anything that connects to the internet, even if it doesn’t contain your medical records, poses a risk. The October 2017 attacks were made possible by the large number of unsecured internet-connected digital devices, such as home routers and surveillance cameras.
The attackers infected thousands of them with malicious code to form a botnet. Now, this is not a sophisticated means of attack, but there is strength in numbers. They can be used to swamp targeted servers, especially if they march in all at once.
3. How did the attacks actually happen?
Remember that bit in the instruction manual where it told you to change the default password? Well, if you didn’t, then chances are your IoT device could spring to life as a cyber zombie. The DDoS-attackers know the default passwords for many IoT devices and used them to get in. It’s a bit like leaving your house keys under a flowerpot for anyone to find.
Anyone putting an IoT router, camera, TV or even refrigerator online without first changing the default password is enabling attacks of this type. ESET research suggests at least 15% of home routers are unsecured – that’s an estimated 105 million potentially rogue routers.
4. Wait, do I need IoT devices?
Some people dismiss IoT devices as gimmicky; others believe that in a few years we’ll all have smart cupboards that tell us what we can have for dinner. But there are numerous discernible benefits, such as the sensors in smartphones and smartwatches that provide real information about our health. Or the “blackbox” telematics in cars which can prove how safe or unsafe our driving is and thus help with insurance claims.
5. So, this is a new problem?
Nope. The possibility for exploitation of this kind has been common knowledge since, well, the dawn of IoTs. But, we didn’t realize quite how vulnerable we were until last year’s attack. Malicious code infecting routers is nothing new, as this ESET research clearly demonstrates.
The advice to change the default passwords on these devices is not new and has been reiterated many times. Yet you can lead a horse to water, but there’s no making them drink. Years ago WeLiveSecurity reported on the existence of 73,000 security cameras with default passwords.
6. How far does it go back?
The IoT actually goes way back as far as the 1980s. But in a slightly Back to the Future iteration. Researchers at Carnegie Mellon University first came up with an internet-connected Coke vending machine in 1982.
7. Surely, internet giants have the power to stop this?
Sure, they do. But that doesn’t mean some of them haven’t left gaping holes available for malicious exploitation. At the Black Hat security conference last year, security research students from University of Central Florida demonstrated how they could compromise Google’s Nest thermostat within 15 seconds.
Daniel Buentello, one of the team members, was quoted as saying in 2014: “This is a computer that the user can’t put an antivirus on. Worse yet, there’s a secret backdoor that a bad person could use and stay there forever. It’s a literal fly on the wall.”
8. What can I personally do to stop this?
Look at IoT devices like any other computer. Immediately change the default password and check regularly for security patches, and always use the HTTPS interface when possible. When you’re not using the device, turn it off. If the device has other connection protocols that are not in use, disable them.
These things might sound simple, but you’d be alarmed by how easy it is to opt for convenience over good sense. Only half of respondents to this ESET survey indicated that they’d changed their router passwords.
9. What can companies do to stop this?
You might think, ‘What’s the point? If an attacker can breach Amazon, then what hope does my firm have?’ Well, don’t give up hope. Organizations can defend against DDoS attacks in a range of ways including boosting the infrastructure of their networks and ensuring complete visibility of the traffic entering or exiting their networks. This can help detect DDoS attacks, while ensuring they’ve sufficient DDoS mitigation capacity and capabilities. Finally, have in place a DDoS defense plan, which is kept updated and is rehearsed on a regular basis.
Think of it like a fire drill for your network. Also, watch out for Telnet servers. These are the dinosaurs of the digital universe and as such should be extinct, because they’re so easily exploited. Never connect one to a public-facing device.
10. But … and this is a big but …
The tech might have been around for a while but these kinds of attacks are brand new. As such there are no agreed best practice protection methods for stopping an IoT from turning against you.
At least, not ones that the experts can agree on. Some believe you should apply a firewall in your home or business and to regulate control of them to authorized users. However, another method would be to apply a certification approach: allowing only users with the right security certificate to control the devices and automatically barring any unauthorized profiles. If in doubt, unplug it.
Legion gets a pro makeover
Lenovo’s latest Legion gaming laptop, the Y530, pulls out all the stops to deliver a sleek looking computer at a lower price point, writes BRYAN TURNER
Gaming laptops have become synonymous with thick bodies, loud fans, and rainbow lights. Lenovo’s latest gaming laptop is here to change that.
The unit we reviewed housed an Intel Core i7-8750H, with an Nvidia GeForce GTX 1060 GPU. It featured dual storage, one bay fitted with a Samsung 256GB NVMe SSD and the other with a 1TB HDD.
The latest addition to the Legion lineup has become far more professional-looking, compared to the previous generation Y520. This trend is becoming more prevalent in the gaming laptop market and appeals to those who want to use a single device for work and play. Instead of sporting flashy colours, Lenovo has opted for an all-black computer body and a monochromatic, white light scheme.
The laptop features an all-metal body with sharp edges and comes in at just under 24mm thick. Lenovo opted to make the Y530’s screen lid a little shorter than the bottom half of the laptop, which allowed for more goodies to be packed in the unit while still keeping it thin. The lid of the laptop features Legion branding that’s subtly engraved in the metal and aligned to the side. It also features a white light in the O of Legion that glows when the computer is in use.
The extra bit of the laptop body facilitates better cooling. Lenovo has upgraded its Legion fan system from the previous generation. For passive cooling, a type of cooling that relies on the body’s build instead of the fans, it handles regular office use without starting up the fans. A gaming laptop with good passive cooling is rare to find and Lenovo has shown that it can be achieved with a good build.
The internal fans start when gaming, as one would expect. They are about as loud as other gaming laptops, but this won’t be a problem for gamers who use headsets.
Click here to read about the screen quality, and how it performs in-game.
Serious about security? Time to talk ISO 20000
By EDWARD CARBUTT, executive director at Marval Africa
The looming Protection of Personal Information (PoPI) Act in South Africa and the introduction of the General Data Protection Regulation (GDPR) in the European Union (EU) have brought information security to the fore for many organisations. This in addition to the ISO 27001 standard that needs to be adhered to in order to assist the protection of information has caused organisations to scramble and ensure their information security measures are in line with regulatory requirements.
However, few businesses know or realise that if they are already ISO 20000 certified and follow Information Technology Infrastructure Library’s (ITIL) best practices they are effectively positioning themselves with other regulatory standards such as ISO 27001. In doing so, organisations are able to decrease the effort and time taken to adhere to the policies of this security standard.
ISO 20000, ITSM and ITIL – Where does ISO 27001 fit in?
ISO 20000 is the international standard for IT service management (ITSM) and reflects a business’s ability to adhere to best practice guidelines contained within the ITIL frameworks.
ISO 20000 is process-based, it tackles many of the same topics as ISO 27001, such as incident management, problem management, change control and risk management. It’s therefore clear that if security forms part of ITSM’s outcomes, it should already be taken care of… So, why aren’t more businesses looking towards ISO 20000 to assist them in becoming ISO 27001 compliant?
The link to information security compliance
Information security management is a process that runs across the ITIL service life cycle interacting with all other processes in the framework. It is one of the key aspects of the ‘warranty of the service’, managed within the Service Level Agreement (SLA). The focus is ensuring that the quality of services produces the desired business value.
So, how are these standards different?
Even though ISO 20000 and ISO 27001 have many similarities and elements in common, there are still many differences. Organisations should take cognisance that ISO 20000 considers risk as one of the building elements of ITSM, but the standard is still service-based. Conversely, ISO 27001 is completely risk management-based and has risk management at its foundation whereas ISO 20000 encompasses much more
Why ISO 20000?
Organisations should ask themselves how they will derive value from ISO 20000. In Short, the ISO 20000 certification gives ITIL ‘teeth’. ITIL is not prescriptive, it is difficult to maintain momentum without adequate governance controls, however – ISO 20000 is. ITIL does not insist on continual service improvement – ISO 20000 does. In addition, ITIL does not insist on evidence to prove quality and progress – ISO 20000 does. ITIL is not being demanded by business – governance controls, auditability & agility are. This certification verifies an organisation’s ability to deliver ITSM within ITIL standards.
Ensuring ISO 20000 compliance provides peace of mind and shortens the journey to achieving other certifications, such as ISO 27001 compliance.