Internet is already full of digital images and more is added every day. Digital pictures have become a cheap way for journalists to tell a story and ordinary people upload tons of them to social media. It’s quicker and easier to snap a shot and upload than to describe where you are and what the place looks like.
Photographs have always been seen as some kind of proof. Like a captured piece of reality. We are however aware of the fact that photographs can be manipulated. Digital image processing has revolutionized this area and brought amazing new techniques to us. But image manipulation has actually been a known technique since photography was invented. It is amazing to see what a skilled person can do to traditional images in the darkroom. Not to mention the fact that you can lie a lot just by taking the picture in a certain way.
This article is about our relationship to the digital images on the net. There’s a lot of manipulated pictures out there, but are you able to recognize a fake? And are you even alert and aware that the picture may not be the full truth? We are all confronted with many pictures a day that aren’t completely real. Objects may be added or removed, or heavy retouching has been used to make models look better. Here’s some concrete hints about how to tell the fakes from the real ones.
That’s a quick list of things that help you spot the fakes. Using these hints require some training, but you will soon start seeing the manipulations if you keep them in mind when looking at images. But is it possible to make a perfect fake that is undetectable? Yes, especially if a skilled artist can work on a high resolution image and the result is scaled down to be published on the web. That down-sampling can hide the signs of manipulation effectively and make the fake practically undetectable for laymen. Scientific analysis methods are more capable, but they are not available to us mortals. And they may also fail to detect good fakes.
So the moral of the story is really that a photo shouldn’t be trusted too much unless its background is known and we know what ethical principles the photographer and publisher adhere to. News agencies typically pay attention to this and promise us authentic news pictures. These pictures are typically trustworthy, even if scandals do occur.
PS. This funny video is one of my favorites on YouTube.
You might know what a VPN (Virtual Private Network) is. But if you’re like many people out there, you probably don’t use one. You should though. And when you finish this blog post, you’ll know why. A VPN is a private network established over the internet. That might sound complicated, so simply put, a VPN provides security for your device’s internet connection. The layer of security VPNs provide is how you make sure that data you send and receive is encrypted and safe from trackers, hackers and anyone else trying to intercept your data while it’s in transit. Companies and schools use VPNs to let people connect to local networks from anywhere. And you can also use a VPN to stay anonymous whether you’re at home, at work or school, or using an untrusted public network. And as an added bonus, of course, a VPN also lets you change your virtual location, which can mean unrestricted access to a whole world of content. So why is online anonymity so important? Who better to answer that than two real Freedome VPN users. And while we can assure you these guys are both real, in keeping with the theme of anonymity, let’s just call them “John” and “Doe”. “Anonymity is important because I really see it as a human right. Like if I’m looking for things that are really personal, I have the right to stay private and keep that information private,” says John, a university student who’s been using Freedome VPN for three months and counting. Doe, who is 29 and in the IT industry, has used VPNs before, but recently switched to F-Secure’s Freedome. For him, using a VPN isn’t just about protecting himself today: it’s an investment in the future. “I’ve never had problems myself, but we know for a fact that there are organizations and people out there right now who are looking to get their hands on our information and identities for whatever reason. This is definitely going to be a bigger problem in the future, and I want to be prepared,” says Doe. Both John and Doe say that most of their friends in the tech industry are using VPNs right now. But unfortunately, there are lots of people out there who aren’t. “I really wish people were more aware of the fact that they’re potentially giving away parts of their identity and privacy every single time they go online without a VPN,” says Doe. John agrees. “If you think about how people are feeding more and more of their personal information into a wider and wider range of sites, services etc., it’s obvious that the potential risks to our privacy are also increasing,” he says. John and Doe definitely know what they’re talking about and we couldn’t agree more. There’s never been a better time to take control of your online anonymity. So check out the Freedome VPN site for videos and more info. And don’t forget to tap or click to get yours! [Image by Blue Coat Photos | Flickr]
Many people feel that some platforms are more secure than others. And while there may be some truth in that, what’s far more common is that operating systems offer users security features that people choose to use, or ignore. As Micke has pointed out in the past, behavior is often more important for security than product features. So someone with an Android device that updates all the software, sets it up to keep the device and data in their control, and knows how to avoid risky behavior that hackers look for will keep their data safer than an iPhone user that’s never even looked at the settings for their device. And based on what we saw at AltConf2016 – a developer event that mirrored Apple’s last WWDC – it looks like many iPhone and iPad users are making some pretty basic security faux pas. So here’s a few tips iPhone and iPad users can use to protect their devices and data. Don’t forget to forget Wi-Fi networks Unlike Android and Windows Phone, iOS devices don’t let you see your Wi-Fi history. It might not seem like it, but periodically cleaning out your Wi-Fi history is important. We’ve shown in the past that many people configure their devices to automatically connect with Wi-Fi hotpots they’ve connected with before. This leaves them exposed to hackers spoofing Wi-Fi hotspots (which is surprisingly simple and inexpensive to do). So if you’re an “auto-connector”, you should always remember to “forget” public Wi-Fi networks that you use in the odd café, hotel, or restaurant you visit. Because iOS devices don’t let you see your network history, you can’t pick and choose old networks you want to forget. So iOS users have two options: either forget a Wi-Fi network before you leave and walk out of range, or do a periodic network reset to clean out your entire network history. Don’t name your device after yourself During AltConf2016, F-Secure set up a Wi-Fi hotspot to see whether or not people would connect to any available free Wi-Fi. And as we’ve seen in the past, people take their Wi-Fi wherever they can get it. While many people connected and disconnected frequently, it was clear that lots of those people seem to name their device’s after themselves – approximately 80% of the devices that connected included a first name as part of the device identifier. And out of that 80%, 70% of them were iOS devices (Android and OS X devices constituted the remaining 30%). Now, hackers won’t really need this information to “pwn” their victims. But little tidbits like these are great for scams that use social engineering. Fraudsters and tricksters can use something as simple as this to manipulate people as part of a larger scam. It’s tough to say why personalizing devices seems more popular among iOS users than their Android/Windows counterparts. And having unique device names helps keep them separate on, say, a family’s Wi-Fi network that can have multiple people using it at any one time. But using initials or some other way to differentiate them is a better way to personalize your device without necessarily giving tech-savvy fraudsters the opportunity to learn something they can use to scam you. Use app restrictions (they're not just for kids) Earlier in the year, F-Secure Security Advisor Sean Sullivan recommended people change their iOS settings to take advantage of the various restrictions you can use. You can check out his blog post about it here, but basically, using iOS’ restrictions can create safeguards against malicious apps or attacks that try to trick your device into sharing information without your knowledge. Attackers use apps and processes that can run without requiring direct action from users (such as cloud storage services) to steal data. It’s something often seen as part of corporate cyber attacks, so it’s especially important to do this if you use your iPhone or iPad for work. And as my colleague pointed out in this recent blog post, you should already be using two-factor authentication and strong, unique passwords. [Image by Kārlis Dambrāns | Flickr]
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.