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How we go deeper to protect you from new threats

Read our whitepaper about F-Secure DeepGuard, our proactive protection against new and emerging threats. Read it here.

You may know that F-Secure won the Best Protection Award – twice in a row. But if you’ve ever wondered about how we actually go about protecting our customers from malware, this post is for you. We do it by going deeper. Let me explain.

Traditional antivirus software looks at the outward characteristics of files to see if the characteristics match those of previously seen malware files. If they match, the antivirus program knows to block the file.

For this system to work, antivirus labs need to have a sample of the malware file in order to analyze its characteristics so they know exactly what they need to block.

This is a very effective method for blocking most malware seen to date, and this is how F-Secure protects you from existing malware we already know about.

Of course, it takes time for antivirus labs to receive a malware sample and analyze it so we can effectively block it. That means brand new malware created just in the past few days or weeks that we haven’t yet had a chance to analyze, can get past traditional scanning systems.

Complicating the issue, cybercriminals who create malware nowadays are very clever at avoiding detection by antivirus programs. One way they do this is by creating new, different variants of their malware. These variants are still the same malware at the core, but they appear new and different on the outside. Like a criminal who dresses in disguise to avoid being recognized, the malware file is disguised to avoid detection by antivirus software. There are automated malware creation kits that do this for the cybercriminals, making it easy to spit out thousands of new variants.

To be able to protect from brand new malware, then, and to protect from all the new variants of existing malware, it is crucial for F-Secure’s software to be able to detect a malware file even before our Labs have ever received a sample of it.

So how do we block malware strains we’ve never seen? We examine not just a file’s outward characteristics, but we also monitor its behavior for suspicious activity. Like I said, malware can change in appearance and characteristics. But one thing never changes: Malware always does malicious things. So if we’re not sure if a file is malicious or not, we watch to see how the program behaves.

We call our behavioral analysis technology DeepGuard. DeepGuard observes a program’s behavior and prevents potentially harmful actions from successfully completing. This way, we can block even brand new malware files that haven’t yet been analyzed. And we can stop malicious files that are disguised as something else.

When the user opens a file, any file, DeepGuard instantaneously checks for suspicious behavior, and if it finds something, it will block the program from launching. Since some malware hide their malicious behavior until after the program launches, DeepGuard still continues monitoring programs while they are running, watching for and blocking suspicious actions.

DeepGuard is a feature of F-Secure’s products, working in tandem with our other protection layers (browsing protection, traditional signature scanning, file reputation analysis, and prevalence rate checking) to provide the very best protection. Our newest version, DeepGuard 5 with exploit protection, has already been rolled out, so customers with the latest versions of F-Secure products are already benefiting from the latest technology.

And that’s how we protect you.

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amazon Echo, voice-activated, internet of things

Yes, Your Voice-Activated IoT Devices Are Always Listening

What's easier than typing, clicking or even swiping left? For most of us, speaking. Until we can get actual USB ports in our brain, our mouths may be the quickest way to make our our desires known to our devices. And as it Internet of Things develops, we're going to be doing more and more talking to machines, including our thermostat, light bulbs and possibly even our drones. Fans of Siri and the Amazon Echo are already familiar with the benefits of a conversational interface. But, as with any new technology that gains widespread adoption, privacy and security concerns are inevitable. We spoke to F-Secure's Cyber Gandalf Andy Patel about what users of voice-activated technology should know as they make the leap into this newer realm of connectivity that has long been imagined by science fiction visionaries from Philip K. Dick to Star Trek's Gene Roddenberry. So are these voice-activated devices listening all the time? Yes. In order for a device to react to a voice command without the user pressing a button to activate the feature, the device must listen all the time. How could this be used against us? If a device streams voice data to a server for processing, a few privacy and security implications arise. If the data is being streamed in an insecure way, it can be intercepted by a third party. If the speech data is stored insecurely, it can become compromised in the case of a data breach. It can also potentially sold to a third party. Speech is processed into text. That text might be stored, it might be associated with its source, and it could also be leaked. When the speech processing service returns data to the device that requested the processing, it could also be intercepted. Are the any real privacy concerns for owners of voice-activated devices? Some companies outsource their speech recognition services and cannot properly account for the processes and collection methods used by those companies. Along those lines, just last year, Samsung TV voice recognition made the news for recording owners' chatter. Voice command systems can also be maliciously hijacked. Last year, a group of French researchers demoed a method for remotely controlling Siri from a distance, using sounds that triggered Siri’s voice control, but that couldn’t be recognized by a human. So what will voice-activated technology look like in five or ten years? Big names are interested in voice control because they attach it to AI and machine learning systems -- which are, in turn, fed by the Big Data they’ve collected -- for an interactive experience. The end goal would be a scenario where you could ask your computer to perform arbitrary tasks in the same manner as on Star Trek.

July 21, 2016
BY 
Traveling and using public wifi - privacy is at risk

Free Wi-Fi is a vacation must, but are we paying with our privacy?

We used to search holiday magazines to find the hotel that offered the biggest pool and then triple check that the hotel has air conditioning. If we were really picky, we wouldn’t look twice at a hotel that didn’t offer cable TV. Now we see the perfect summer holiday in a different light. We can’t possibly leave our smartphones, tablets and laptops behind. A survey by Energy Company E.ON revealed that the most important feature hotels must have to even be considered is free Wi-Fi. Why do we find it so difficult to disconnect ourselves from the digital world? Even when we’re sitting in the beautiful sunshine, sipping on cocktails and splashing in the sea? Partly our digital dependence is practical, of course. The web helps us navigate around our holiday destinations finding the best attractions, the coolest bars and most remote beauty spots. But if we’re honest, many of us would admit that we’re so digitally connected because we don’t want to miss anything happening on Facebook, Instagram, Snapchat, Twitter and all the other social apps filling our electronic wonders. We continue to check in, trying to make our friends jealous by posting the latest update about our perfect holiday. Now that we’ve settled that an internet connection is a top holiday priority, why don’t we just use our phone network? Simple: we’ve all heard the horror story of someone getting crazy high bill after spending just a few days in Spain. So, we’re constantly on the search for a local bar or café that offers free Wi-Fi. It’s a fantastic feeling to be wiser than our internet provider – they can’t spring us with unheard-of charges. But connecting to public Wi-Fi comes with its own risks, and, I would argue, scarier ones than an unexpected post-holiday bill. For example, take a look at this infographic. It shows the personal data that can be intercepted and the risks you face to your privacy when you connect to public Wi-Fi without using a VPN. If the thought alone of anyone being able to snoop on what you do online isn’t enough to want to run away from ever connecting to public Wi-Fi again, then think about the bigger risks. The worst case scenario here is you could become a victim of stalking, receive threats, or have your identity stolen. This might sound farfetched, but with what information you reveal on public Wi-Fi, is it worth the risk? If you use a VPN like Freedome while on public Wi-Fi, all your internet traffic will be encrypted. This means instead of your internet traffic connecting directly to the websites from your device, revealing exactly what you’re doing online to the Wi-Fi provider, the VPN will garble your internet traffic and keep what you’re doing online anonymous. You internet privacy and safety is our biggest concern here, and Freedome will definitely provide that security. But here’s a little extra to boost your internet love and consumption when on holiday abroad: When in another country, you might not be able to stream your favorite content from back home. But with Freedome VPN, you can be “virtually” back in your home country, accessing all your favorite content as if you never left.

July 20, 2016
BY