If you bring your phone, tablet or laptop with you when you travel, there’s one thing to keep in mind: public WiFi networks are public.
“That open Wi-Fi connection opens the door for hackers,” writes NPR’s Steve Henn. “They can get in the middle of transactions between, say, you and your bank.”
Because you’re sharing the network with strangers, there’s the risk that someone is using readily available software that snoops on what you’re doing.
“It may feel private because you’re using your personal device, but it’s not,” our Security Advisor Sean Sullivan told us last year.
Sean advises against doing anything via public WiFi that you wouldn’t want an eavesdropper to know – including logging into accounts with passwords.
Before you hit the road make sure all your devices are backed up, your applications and operating system are patched and you’re running an updated security solution on any device you can.
You can try F-Secure SAFE on up to 3 devices for free for the next month.
Here are some more tips that will keep you secure wherever you may roam:
• Don’t let your device connect to public WiFi spots automatically.
• Delete out the WiFi access points you’ve used when you arrive home.
• Log out of all your apps you don’t need while traveling.
• Lock any device you’re your using with a code that can’t be guessed.
• Be aware of your surroundings and anyone who could be trying to peek over your shoulder.
• Use a unique, strong password for each account.
• For laptops, disable file sharing and turn on the firewall, setting it to block incoming connections.
• Use a VPN (virtual private network) like Freedome if possible, which secures your connection even on public WiFi.
• Use a travel router with a prepaid SIM card for your own personal WiFi network.
• At the very least, watch for the padlock and “https” in the address bar for any site with your personal information. If they’re not there, avoid the site.
• A good general rule: Assume anything you do over public WiFi is part of a public conversation.
[Image by Mario Mancuso via Flickr]
Many techie terms in the headlines lately. Supercookies, supertrackers, HTTP headers and X-UIDH. If you just skim the news you will learn that this is some kind of new threat against our privacy. But what is it really? Let’s dig a bit deeper. We will discover that this is an issue of surprisingly big importance. Cookies are already familiar to most of us. These are small pieces of information that a web server can ask our browser to store. They are very useful for identifying users and managing sessions. They are designed with security and privacy in mind, and users can control how these cookies are used. In short, they are essential, they can be a privacy problem but we have tools to manage that threat. What’s said above is good for us ordinary folks, but not so good for advertisers. Users get more and more privacy-aware and execute their ability to opt out from too excessive tracking. The mobile device revolution has also changed the game. More and more of our Internet access is done through apps instead of the browser. This is like using a separate “browser” for all the services we use, and this makes it a lot harder to get an overall picture of our surfing habits. And that’s exactly what advertisers want, advertising is like a lottery with bad odds unless they know who’s watching the ad. A new generation of supercookies (* were developed to fight this trend. It is a piece of information that is inserted in your web traffic by your broadband provider. Its purpose is to identify the user from whom the traffic comes. And to generate revenue for the broadband provider by selling information about who you really are to the advertisers. These supercookies are typically used on mobile broadband connections where the subscription is personal, meaning that all traffic on it comes from a single person. So why are supercookies bad? They are inserted in the traffic without your consent and you have no way to opt out. They are not visible at all on your device so there is no way to control them by using browser settings or special tools. They are designed to support advertisers and generate revenue for the mobile broadband provider. Your need for privacy has not been a design goal. They are not domain-specific like ordinary cookies. They are broadcasted to any site you communicate with. They were designed to remain secret. They are hidden in an obscure part of the header information that very few web administrators need to touch. There are two ways to pay for Internet services, with money or by letting someone profile you for marketing purposes. This system combines both. You are utilized for marketing profit by someone you pay money to. But what can and should I do as an ordinary user? Despite the name, this kind of supercookies are technically totally different from ordinary cookies. The privacy challenges related with ordinary cookies are still there and need to be managed. Supercookies have not replaced them. Whatever you do to manage ordinary cookies, keep doing it. Supercookies are only used by some mobile broadband providers. Verizon and AT&T have been most in the headlines, but at least AT&T seems to be ramping down as a result of the bad press. Some other operators are affected as well. If you use a device with a mobile broadband connection, you can test if your provider inserts them. Go to this page while connected over the device’s own data connection, not WiFi. Check what comes after “Broadcast UID:”. This field should be empty. If not, then your broadband provider uses supercookies. Changing provider is one way to get rid of them. Another way is to use a VPN-service. This will encapsulate all your traffic in an encrypted connection, which is impossible to tamper with. We happen to have a great offering for you, F-secure Freedome. Needless to say, using Freedome on your mobile device is a good idea even if you are not affected by these supercookies. Check the site for more details. Last but not least. Even if you’re unaffected, as most of you probably are, this is a great reminder of how important net neutrality is. It means that any carrier that deliver your network traffic should do that only, and not manipulate it for their own profit. This kind of tampering is one evil trick, throttling to extort money from other businesses is another. We take neutrality and equal handling for granted on many other common resources in our society. The road network, the postal service, delivery of electricity, etc. Internet is already a backbone in society and will grow even more important in the future. Maintaining neutrality and fair rules in this network is of paramount importance for our future society. Safe surfing, Micke PS. The bad press has already made AT&T drop the supercookies, which is great. All others involved mobile broadband providers may have done the same by the time you are reading this. But this is still an excellent example of why net neutrality is important and need to be guaranteed by legislation. (* This article uses the simplified term supercookie for the X-UIDH -based tracker values used by Verizon, AT&T and others in November 2014. Supercookie may in other contexts refer to other types of cookie-like objects. The common factor is that a supercookie is more persistent and harder to get rid of than an ordinary cookie. Image by Jer Thorp
Social media is here to stay and it definitively changes our way to communicate. One new trend is the ability to communicate instantly without writing or saying anything. Good examples are Facebook’s Like-button and the indicators for what you are doing or feeling. Facebook’s Like-button is no doubt the most popular and important feature in this category. You really can’t be a Facebook user without getting in touch with it. But the big question is what you really mean by clicking Like? It sounds simple, but may be more complex than you think. You do not only express support for the post you like, it is also a social gesture towards the poster. You show that you have read the post and want to stay in touch. Another interesting question is how to deal with good posts about bad things. We see them almost daily. Someone is writing an excellent post about something that is very wrong. You really dislike the topic of the post even if you think it’s good that someone brings it up. You agree about something you dislike. Should you click Like? Does a like target the post or the topic of a post? There’s no generic rule for this and we all act differently. More activity, likes and comments, boost a post and makes it more visible. So it would make sense to like the post as we want to spread awareness about the problem. But it still feels wrong to like something that makes you feel sick. So that’s the poll question for today. How do you act when you see a good post about something bad? Do you click Like? [polldaddy poll=8445608] Safe surfing, Micke
We wouldn't be F-Secure without the talented and passionate researchers in our Labs. And today we'd like you to meet one whose inquisitive nature has driven him to become an inventor - and a prolific one at that. In his 14-year career with F-Secure, Jarno Niemelä has racked up an impressive 20 patents to his name and has filed 100 patent applications in total. His achievements recently won the title of "Salaried Inventor of 2014" from a group of Finnish inventors' organizations. I sat down to chat with Jarno about where he gets his ideas, and his advice for others. What area do your inventions focus on? I mostly focus on methods to help detect malware on a system, or methods of preventing malware from entering the system in the first place. How do your ideas come about? Inventions mostly happen in the evening when I'm not at work, and not even trying to think about it. I'll be working on some problem at work, and usually a day or two later, when I'm doing something totally unrelated on my own time, it hits me. I understand the problem and come up with a solution. The gym is a really good place for inventions. What motivates you to keep on inventing new solutions? Inventions just happen, pretty much. Whenever I'm able to define a problem, I'm usually always able to come up with a solution. I am lucky to be researching in areas with problems that others have not yet solved. I'll be honest, I don't really like patents that much personally. The fact is though, that companies without patents would pretty much be at the mercy of the competitors. So in my view, patents are basically company self defense. Patents keep things in balance. Were you curious about things growing up? I've always kind of been inventive. You cannot learn to become an inventor, it's either something that's in your nature or it's not. And then you need to hone the talent and learn how to work within the patent framework. Another thing that is very important is good basic education and knowledge about the field. I owe a lot to Metropolia University of Applied Sciences where I studied for my engineering degree. Do you have any advice for people who have this inventive nature and are interested in filing patents? It all starts from defining and understanding the problem. Without a thorough understanding of the problem, you can't come up with a solution. Also, when it comes to patents, it's important to know what has previously been done in your area, and be clear in exactly how your invention is different from those. Otherwise your patent can be easily rejected by the patent examiner. And finally, patents are a long process so you need patience. It can take three to five years to get a patent approved. So this is not for hasty people. What is that rock you're holding? It's my trophy, a piece of Finnish bedrock! Inventors are the bedrock of new products. Do you have any certain goals for your inventions? Before I retire I would like to have at least 50 patents to my name. - Well, he's off to a great start. Congratulations, Jarno! Follow Jarno on Twitter