There are many ways to keep your computer secure. Your own behavior affects it a lot and we at F-Secure are happy to help protecting you with our products. But there are also many tools that can improve your security even if that wasn’t their initial purpose. Melissa and Sean described how you can use separate browsers to lower the risk for human errors. Virtualization is another technology that can improve security as a side effect. It’s a like the separate browsers idea, but takes it a lot further. Read on to learn more.
Virtualization in computing means to simulate something with software. What we talk about here is to create a whole virtual computer inside a real computer. It’s complex under the hood, but there are luckily easy products that can be used by almost anyone. This technology is by the way used extensively in the software industry. Huge number of virtual computers can be used to process data or test software. A large portion of the Internet is also provided by virtual servers.
But how can this improve my security? Most malware is made for profit and interfering with your on-line banking is a common payload. But what if you run your on-line banking on a separate computer? Buying another machine costs money and consumes space, but that can be solved by using a virtual computer instead. That virtual machine would only be used for banking, nothing else. A malware infection could happen if your guard is down and you open a malicious file in the mail. Or surf to a site witch is infected with a drive-by download. Both cases could infect your real computer, but the malware can’t see what you are doing with the bank inside the virtual machine. One could also use the opposite strategy. Use a virtual machine when doing something risky, like looking for downloads on shady servers. A previously made snapshot can easily be restored if something bad hits the virtual machine.
An additional benefit is that this gives you an excellent opportunity to play around with different operating systems. Install Linux/Windows/OS X just to become familiar with them. Do you have some hardware which driver won’t work in your new machine? No problem, install a virtual machine with an older operating system.
OK, sounds like a good idea. But can I do it? Here’s what it takes.
I’m not going to provide detailed instructions for this. That depends too much on which virtualization product and operating system you use. And it would beside that be like reinventing the wheel. You will find plenty of step-by-step instructions by Googling for what you want to do, for example “install Linux in VirtualBox”.
But for your convenience, here’s an overview of the process.
Edited to add: It is of course a good habit to exercise the same basic security measurements inside virtual machines as in real computers. Turn on the operating system’s update function, install your anti-virus program and make sure your browser is kept up to date. Doing just banking with the virtual machine reduces the risk a lot, but this is good advice even in that case. And needless to say, the virtual machine’s armor is essential if you use it for high-risk tasks. Thanks Dima for providing feedback.
If you use the internet like a normal person, password management is a pain. It doesn't have to be that way. Over the last two months through Triberr, we invited a group of bloggers we enjoy to work as brand ambassadors on behalf of our password manager KEY, which we built to make securing your accounts simple. They tried KEY out and shared their experience with their readers. By watching them explain what they learned we were reminded that there are some password truths we take for granted. Here are five important points about passwords they made that everyone needs to know. 1. No one changes their passwords when there's a hack. It's constant headline, "Passwords breached. Change all your passwords!" Not only do we have to put up with our trust being breached, as Breakthrough Radio's Michele Price pointed out, we have to take the time to change all our passwords ourselves. If you're a regular reader of Safe and Savvy, you know that experts aren't being sincere when they tell you to change all your passwords. “The dirty little secret of security experts is that when there’s a data breach and they recommend to ‘change all your passwords,’ even they don’t follow their own advice, because they don’t need to,” our Security Advisor Sean Sullivan told us. The only reason you'd need to change all your passwords is if you made a few basic mistakes. 2. Our password choices can make us vulnerable. "You should have diversified your usernames and passwords in the first place," Harri Hiljander, our Product Director or Personal Identity Protection, told LeadersWest's Jim Dougherty. If you reuse passwords, every hack or breach is exponentially worse. But still people reuse passwords over and over for a pretty obvious reason. 3. It's too hard to come up with and remember strong, unique passwords for all our important accounts. Our bloggers presented the suggestions for generating strong unique passwords our Labs offered -- and to be honest, the advice can overwhelming. But if you're going to come up something that protects your financial details, it's essential. That's why the bloggers liked KEY's ability to generate strong passwords for them. "I think this is the best feature of all," World of My Imagination's Nicole Michelle wrote. Forget all the rules. Now you don't have to worry if your password is going to end up on a list of ones you should never use. 4. Password security is especially important to people who work online -- and who doesn't? If you spend your time building up an online publication your readers trust, the integrity of your site is priceless, as we learned from WhyNotMom.com. Sean advised our bloggers to sure that their WordPress -- or any blogging platform -- password isn't being reused anywhere else. In addition to the three things everyone needs to do -- back up everything, patch all your software and use updated security software -- he also advised them to make sure they keep a watchful eye on all their blog plug-ins. Keep them updates AND keep an eye out for plug-ins that are no longer being updated. Get rid of those. 5. You should have at least one email account you don't share with anyone. Identity management gets harder and harder as our usernames become more public. Everyone gets by now -- we hope -- that you should never reuse pairings of logins and passwords for your crucial accounts. But there are extra steps you can take, as our bloggers learned from our KEY experts. "Create a new email address for online accounts, don’t share it with ANYONE." Chelsea from Me and My Handful wrote about our Labs' advice to keep your login names secret. "So smart, and yet, we don’t do it." But all this knowledge is useless if you don't have a system to keep your passwords secure. Set up a system then pick a password manager -- we suggest you try KEY for free, of course --and stick with it. Cheers, Jason [Image via kris krüg via Flickr ]
The recent statements from FBI director James Comey is yet another example of the authorities’ opportunistic approach to surveillance. He dislikes the fact that mobile operating systems from Google and Apple now come with strong encryption for data stored on the device. This security feature is naturally essential when you lose your device or if you are a potential espionage target. But the authorities do not like it as it makes investigations harder. What he said was basically that there should be a method for authorities to access data in mobile devices with a proper warrant. This would be needed to effectively fight crime. Going on to list some hated crime types, murder, child abuse, terrorism and so on. And yes, this might at first sound OK. Until you start thinking about it. Let’s translate Comey’s statement into ordinary non-obfuscated English. This is what he really said: “I, James Comey, director of FBI, want every person world-wide to carry a tracking device at all times. This device shall collect the owner’s electronic communications and be able to open cloud services where data is stored. The content of these tracking devices shall on request be made available to the US authorities. We don’t care if this weakens your security, and you shouldn’t care because our goals are more important than your privacy.” Yes, that’s what we are talking about here. The “tracking devices” are of course our mobile phones and other digital gadgets. Our digital lives are already accurate mirrors of our actual lives. Our gadgets do not only contain actual data, they are also a gate to the cloud services because they store passwords. Granting FBI access to mobile devices does not only reveal data on the device. It also opens up all the user’s cloud services, regardless of if they are within US jurisdiction or not. In short. Comey want to put a black box in the pocket of every citizen world-wide. Black boxes that record flight data and communications are justified in cockpits, not in ordinary peoples’ private lives. But wait. What if they really could solve crimes this way? Yes, there would probably be a handful of cases where data gathered this way is crucial. At least enough to make fancy PR and publically show how important it is for the authorities to have access to private data. But even proposing weakening the security of commonly and globally used operating systems is a sign of gross negligence against peoples’ right to security and privacy. The risk is magnitudes bigger than the upside. Comey was diffuse when talking about examples of cases solved using device data. But the history is full of cases solved *without* data from smart devices. Well, just a decade ago we didn’t even have this kind of tracking devices. And the police did succeed in catching murderers and other criminals despite that. You can also today select to not use a smartphone, and thus drop the FBI-tracker. That is your right and you do not break any laws by doing so. Many security-aware criminals are probably operating this way, and many more would if Comey gets what he wants. So it’s very obvious that the FBI must have capability to investigate crime even without turning every phone into a black box. Comey’s proposal is just purely opportunistic, he wants this data because it exists. Not because he really needs it. Safe surfing, Micke
Is this China's digital riot police? A "particularly remarkable advanced persistent threat" has been compromising websites in Hong Kong and Japan for months, according to Volexity. The pro-democratic sites that have been infected include "Alliance for True Democracy – Hong Kong" and "People Power – Hong Kong" along with several others identified with the Occupy Central and Umbrella Revolution student movements behind the massive protests against the Chinese government. Visitors to the sites are being targeted by malware designed for "exploitation, compromise, and digital surveillance". In an analysis on our Labs Blog, Micke notes that it's possible that cybercriminals could be simply piggybacking on the news without any political motivation. However, the Remote Access Trojans (RATs) being used could provide serious advantages to political opponents of the movement. "A lot of the visitors on these sites are involved in the movement somehow, either as leaders or at grassroot level," he writes. "Their enemy could gain a lot of valuable information by planting RATs even in a small fraction of these peoples’ devices." And even leaders aren't compromised, the publicity around the attack will drive users away from the sites. This is a tactic that would definitely benefit those who want these see protests to end ASAP. And it would be a far more effective tactic if not for social networks like Twitter that can be accessed to plan resistance,even if the government blocks them -- as long as you have a VPN solution like our Freedome. If the goal is to cripple the protests by targeting protesters, "you don’t have to be a genius to figure out that China is the prime suspect," Micke writes. The significance a state-sponsored RAT attack -- or even a state-condoned attack carried out by privateers -- would be immense. Criminals use malware to target individuals, businesses and governments themselves. Government-sponsored cyberattacks on citizens practicing civil disobedience could be considered an escalation beyond even likely government-sponsored surveillance malware like Flame, which forces businesses to consider malware attacks from their own governments. Over the last year we've learned just how far suspicious governments will go to play defense against internet users who haven't been accused of any crime. Now we're seeing hints that a government may be willing to play offense too.