UPDATE

AS OF JANUARY 1, 2013 - POSTING ON THIS BLOG WILL NO LONGER BE 'DAILY'. SWITCHING TO 'OCCASIONAL' POSTING.

Showing posts with label data retrieval. Show all posts
Showing posts with label data retrieval. Show all posts

Friday, January 06, 2012

In Just One Hour Online...


It took just one hour for internet experts to find out almost every private detail of one woman's life

Steve Boggan challenged web experts to see how much they could discover about his partner. The results were chilling...

As I sit writing this, I am feeling vaguely grubby — guilty even — in the way a neurotic husband might after hiring a gumshoe to go trawling through his wife’s secrets.

There is a 15-page report in front of me chronicling virtually every aspect of my girlfriend’s life: past and present. That includes her friends, education, embarrassing pictures, former boyfriends and long-forgotten relatives.

Much of the information is new to me. And the uses to which it could be put — uses I hadn’t dreamt of until this week — are chilling.

Armed with this information, criminals could use her identity to commit fraud or resurrect minute details of her past, her movements and friendships to lure her into scams or even dangerous liaisons.

It could be used to con her into revealing her bank details and credit card numbers.

My internet snooping began because the CEO of Google, Eric Schmidt — a man not known for worrying about internet surfers’ privacy — suggested recently that young people might want to change their identities in the future in order to separate themselves from a past lived too openly on the internet.

We all know Facebook pictures of you dancing at a party with a traffic cone on your head might come back to haunt you. But change your identity completely?

Surely, I wondered, there isn’t enough out there to warrant that.

So I decided to find out how much I could discover about my partner of 12 years, Suzanne, just by using the internet.

Before you think I’m a rat, I should point out that Suzanne, a 39-year-old with a soft furnishings business, agreed to it.

I began in the way lots of identity thieves do: with her name and address. Of course, I knew these details, but identity thieves often discover them by ‘dumpster diving’: looking through dustbins for a discarded piece of mail.

I passed Suzanne’s name and address — but no other details — to Adam Laurie, a 48-year-old computer security and internet privacy advocate.

He shared the information with Chris Sumner, 39, another security expert, who works for a multi-national corporation.

Or at least, that is Sumner’s day job; by night, he analyses vast amounts of information publicly available on the internet to see what it can tell him about criminal activity — in this case, how fraudsters are using social networking sites to choose their victims.

Using sophisticated and completely legal computer techniques, he looks for patterns in the behaviour of internet users to uncover otherwise hidden links.

In the case of social networking sites, he can see just how close two people, or groups of people, really are to each other.

He had met neither me nor Suzanne and knew nothing of her existence until given her name and address.

A day later, his findings dropped into my email inbox.

Picking Suzanne’s life apart, he told me, had taken him just over an hour.

This is because, in common with millions of people in Britain, Suzanne uses the social networking sites Facebook and Friends Reunited, and has signed up to the business networking site LinkedIn and Flickr, the photo-sharing website.

By also using the genealogy website ancestry.co.uk, Sumner was able to piece together the names of all but one of Suzanne’s relatives, including cousins.

Using electoral rolls on 192.com and by searching on Google, he found the addresses of her parents and lots of her friends and colleagues.

From her LinkedIn and Facebook profiles, he found the names of Suzanne’s primary and secondary schools, and a college she had attended in Derby. He also discovered she had studied fine art at Central St Martin’s College of Art & Design in London.

He also had details of Suzanne’s qualifications and pictures of her from her days at school. The snaps weren’t hers — an old schoolfriend had put them on Facebook.

There were some naff hairstyles, but that was as deep as the embarrassment went. Only you know whether a trawl of pictures of you would be more damaging.

But Sumner didn’t stop there. He was able to tell me that Suzanne had travelled extensively in Europe, Asia, the Caribbean and the South Pacific.

This was because she had used an application on Facebook that linked to the travel website TripAdvisor. You fill in where in the world you have been to keep your relatives up to date. But anyone can see it.

He was not only able to list all 41 countries she had visited, but also the 162 towns and islands to which she had been.

Sumner was able to tell me Suzanne’s exact movements by cross-referencing her TripAdvisor entries with photographs she had posted on Flickr.

When you click on a picture on Flickr, a small box gives you access to detailed information that is entered not by you, but by your camera. So, the date and time of the shot are included.

Now that phones and cameras have GPS, there are even concerns that the location of where you uploaded the picture — normally where you live — might be visible.

From a mixture of all of these websites, Sumner listed Suzanne’s likes, dislikes, hobbies, the 34 towns and cities she had visited in Britain, the places where she used to socialise in her youth and details of her former jobs in the newspaper industry.

In fact, it’s fair to say that after just one hour’s trawling he knew more about many aspects of my girlfriend’s past than I did.

Shocking? Perhaps. Yet also astonishingly easy. Suzanne had voluntarily signed up to these websites and, bit by bit, put most of this information out there herself — and forgotten much of it.

However, what I found even more disturbing is that much of what Sumner found was supposed to have been visible only to people whom Suzanne had accepted into her inner circle of ‘friends’ on each networking website. This turned out to be dangerously naive.

Over the years, standard privacy settings— notably for Facebook — have changed, so what you once thought was private has become public.

You are notified about these changes, but if you forget to adjust your individual settings to return to the old level of privacy (which can be fiendishly complicated) then some of your private information becomes available for everyone to see.

‘There are some weird, strange quirks that let you into places you aren’t supposed
to go,’ says Sumner.

‘For example, on Facebook you may not be allowed to see someone’s photographs because they’re private. But if they post a message with one of their photos attached, you are given the option of seeing their whole album. And as you can imagine, that can be embarrassing.’

According to Sumner and Laurie, organised criminals are using this information
in increasingly sophisticated ways to target victims.

‘Criminal gangs are carefully fishing for victims,’ says Laurie. ‘In the past, they would have sent out thousands and thousands of spam emails in a scattergun fashion — and many still do.

‘These are called phishing scams and involve fake requests from banks asking
people to confirm their account details, passwords and so on. The hope is that, once in a while, someone would be silly enough to reply.

‘Today, they are much more targeted. For example, with the information we got about Suzanne from Flickr, you would be able to see where she visited, when, and, if there were captions on the pictures, with whom.

‘After that, the criminals (or romance scammers) would tailor a scam. If they noticed that, say, she was a regular visitor to Malawi, they would make an introduction online, claiming they were a friend — for example, called Dave — of someone she visited there with five years ago.

‘Surely she remembers them? From that beach — her friend was there, too ... yes?

‘Usually people are too embarrassed to say they don’t remember. Then ‘‘Dave’’ claims he is setting up an orphanage — would she like to make a contribution towards it?

‘Or they might simply say they’re a friend of a person you were with and say he’s gone back there, broken his leg and they’re having a fund-raising collection to airlift him home. It’s crude, but effective.’

Sumner says it can get even more complex, with software tools that can work out who is friends with whom among your online groups of contacts.

‘Once you have established a person’s inner network, you go back into their history to find someone they knew at school who isn’t in that network of close friends and who hasn’t signed up to networking sites,’ he says.

‘Then you join those sites in their name, establish yourself with their online identity and ask your original target to accept you as a friend on, say, Facebook.

‘Before you know it, you are inside their life as a trusted person they think they used to know.

‘Once you are in, you can read about what your target and their friends are up to, such as when they are going on holiday. With that information, you can burgle their homes.

‘You can even ask to be Facebook friends with their children. This is a particularly frightening way for someone to stalk you or your family. They can introduce themselves as a Facebook friend of Mum or Dad. And then it’s only a couple of steps away from something awful happening.

‘Teenagers, in particular, are very indiscreet and post hundreds of pictures of themselves, sometimes drunk with their friends in the living room in front of the plasma screen TV or home cinema.

‘Not only are these the sort of pictures that will come back to haunt them in the future — potential employers aren’t supposed to look at these, but they do — but it’s also a dumb way to show burglars what property you have and where it is.

‘Especially after your children have told all their “friends” when the house is going to be empty.’

Sumner described how some of the information he gained from Suzanne would have helped him to get hold of her bank and credit card details. I won’t reveal exactly how he did it, but it involved using some of her social networking information to gain her confidence, then posing as a friend and asking if her business would make some curtains for him with a sample of material he’d seen on another website.

The catch would be that he had set up that other website himself and when she visited it some rudimentary programming he had installed would help him acquire her credit card details.

I ask Suzanne if she would have fallen for the scam. ‘It’s hard to know, but based on what he said, why wouldn’t I have gone along with the requests of a potential customer?’ she says.

There are other ways, too, that criminals can use personal information harvested from the internet. For example, people often use the names of their children or
pets as passwords for online shopping sites.

If criminals can find these names, by gaining access to your social networking circle, they can try to hack into your accounts on popular shopping sites such as Amazon and view your shopping history, or even order expensive goods to be sent to a pick-up address. (I did not ask Laurie or Sumner to attempt this because it would be in breach of data protection law.)

What can we do about all this? Well, not a lot, other than to be aware your information can be used in more sinister ways than you can possibly imagine, and to be on your guard.

As for your children, they can be warned to modify their behaviour and to think twice about what they write and post online and whom they accept as ‘friends’.

According to Linda Weatherhead, principal policy advocate for the campaign group Consumer Focus, social networking sites bear much responsibility for this explosion of potentially useful information.

‘It is a complex problem, but one simple way of making things safer would be to have all our information kept private as the default setting,’ she says. ‘Then it would be up to you how much you want to relax them as you decide to share more of your private
information.

‘Beyond that, we just have to be careful what we put out there — you can advise children about what they are doing, but you can’t wrap them in cotton wool. You can never make anything completely safe.’

But if Adam Laurie and Chris Sumner are right, then the risks of social networking extend far beyond a few embarrassing photos.

In particular, be careful who your ‘friends’ are; they could turn out to be your worst enemies.

Thursday, December 09, 2010

Browser Flaw Can Pick Up Your Porn Site Visits

Dozens of websites have been secretly harvesting lists of places that their users previously visited online, everything from news articles to bank sites to pornography, a team of computer scientists found.

The information is valuable for con artists to learn more about their targets and send them personalized attacks. It also allows e-commerce companies to adjust ads or prices — for instance, if the site knows you've just come from a competitor that is offering a lower price.

Although passwords aren't at risk, in harvesting a detailed list of where you've been online, sites can create thorough profiles on its users.

The technique the University of California, San Diego researchers investigated is called "history sniffing" and is a result of the way browsers interact with websites and record where they've been. A few lines of programming code are all a site needs to pull it off.

Although security experts have known for nearly a decade that such snooping is possible, the latest findings offer some of the first public evidence of sites exploiting the problem. Current versions of the Firefox and Internet Explorer browsers still allow this, as do older versions of Chrome and Safari, the researchers said.

The report adds to growing worry about surreptitious surveillance by Internet companies and comes as federal regulators in the U.S. are proposing a "Do Not Track" tool that would prevent advertisers from following consumers around online to sell them more products.

The researchers found 46 sites, ranging from smutty to staid, that tried to pry loose their visitors browsing histories using this technique, sometimes with homegrown tracking code. Nearly half of the 46 sites, including financial research site Morningstar.com and news site Newsmax.com, used an ad-targeting company, Interclick, which says its code was responsible for the tracking.

Interclick said the tracking was part of an eight-month experiment that the sites weren't aware of. The New York company said it stopped using the technique in October because it wasn't successful in helping match advertisers to groups of Internet users. Interclick emphasized that it didn't store the browser histories.

Morningstar said it ended its relationship with Interclick when it found out about the program, and NewsMax said it didn't know that history sniffing had been used on its users until AP called. NewsMax said it is investigating.

The researchers studied far more sites — a total of the world's 50,000 most popular sites — and said many more behaved suspiciously, but couldn't be proven to use history sniffing. Nearly 500 of the sites studied had characteristics that suggested they could infer browsers' histories, and more than 60 transferred browser histories to the network. But the researchers said they could only prove that 46 had done actual "history hijacking."

"Browser vendors should have fixed this a long time ago," said Jeremiah Grossman, an Internet security expert at WhiteHat Security Inc., which wasn't involved in the study. "It's more evidence that we not only needed the fix, but that people really should upgrade their browsers. Most people wouldn't know this is possible."

The latest versions of Google Inc.'s Chrome and Apple Inc.'s Safari have automatic protections for this kind of snooping, researchers said. Mozilla Corp. said the next version of Firefox will have the same feature, adding that a workaround exists for some older versions as well.

Microsoft Corp. noted that Internet Explorer users can enable a private browsing mode that prevents the browser from logging the user's history, which prevents this kind of spying. But private browsing also strips away important benefits of the browser knowing its own history, such as displaying Google links you've visited in different colors than those you haven't.

"It's surprising, the lifetime that this fundamental a privacy violation can stick around," said Hovav Shacham, an assistant professor of computer science and engineering at UC San Diego and one of the paper's authors.

Internet companies are obsessed with tracking users' behavior so they can target their ads better. Uproar has prompted the Federal Trade Commission to propose rules that would limit advertisers' ability to track Internet users to show them advertisements. The "Do Not Track" tool the commission is proposing could eventually take the form of a browser setting that tells advertisers which visitors are off limits; such a setting, though, wouldn't necessarily block history sniffing.

History sniffing is essentially a side-by-side comparison of Web pages you've already visited with Web pages that a particular site wants to see if you've visited. If there's a match, users likely would never know, but the site administrators would learn a lot about their audiences.

For instance, a popular porn site was checking its visitors' histories to see if they'd visited 23 other pornography sites, and the code used on the Morningstar and NewsMax.com sites looked for matches against 48 specific Web pages, all related to Ford automobiles.

Sites can carry on this kind of inspection very quickly. Grossman said modern programs can check as many as 20,000 Internet addresses per second.

Sunday, October 17, 2010

Is Your Private Phone Number on Facebook?


Probably.

So are your friends' numbers.

If you have a friend on Facebook who has used the iPhone app version to access the site, then it's very possible that your private phone numbers - and those of lots of your and their friends - are on the site.

The reason: Facebook's "Contact Sync" feature, which synchronises your friends' Facebook profile pictures with the contacts in your phone.

Except that it doesn't do that on your phone. Oh no. Because that would be wrong, to pull the photos down from Facebook and put them on your phone. That would breach Facebook's terms of service. Update: A more recent version of the app shows that it does download "your friends' profile photos and other info from Facebook" to add to your iPhone address book.

Instead, what What Facebook's app does it that it imports all the names and phone numbers you have on your (smart)phone, uploads them to Facebook's Phonebook app (got a Facebook account? Here's your Phonebook). (Update: Rhodri Marsden says that you'll now get a big warning sign saying that the numbers are imported into Facebook. That's above.)

Pause for a moment and go and look at it. Did you know those numbers? Did you collect them? Despite the reassuring phrase there - "Facebook Phonebook displays contacts you have imported from your phone, as well as your Facebook friends" - it's absolutely not true. I know because there are numbers there which I don't have. OK, perhaps the people who own them added them; but that's not clear either. So how did they get there? Because it only takes one person to upload another person's number, and the implication is that it's going to be shared around everywhere.

Update: that's the implication of "all contacts from your device... will be sent to Facebook and be subject to Facebook's Privacy Policy". Note, not just your friends - but everyone on your device.

The implications are huge, and extremely worrying. All it takes is for someone's Facebook account to be hacked (perhaps via their phone being stolen) and lots of personal details are revealed. Or, as Craig noted in the comments, you get your phonebook record of "Steve Car" (which was for his garage mechanic) somehow linked to someone called "Steve Carlton" - who he doesn't know.

Update: Facebook says, in a statement: "Facebook never shares personally identifiable information with third parties – advertisers are only given anonymised and aggregated data." It also adds: "Facebook is a free service and something that many people find adds value to their day-to-day lives. As with any service, users do need to invest some time in order to use it properly and we encourage people to use their privacy settings to do this and to access the Help Centre for support."

Kurt von Moos, who first wrote about this earlier this year (since when Facebook has revised its privacy statement, but not altered what goes on in this way) says that there are a number of reasons to be concerned. As he puts it:
"1) Facebook doesn't warn users that they are uploading their phone's adress book to Facebook. In fact, because Facebook doesn't sync contact numbers or email addresses TO your phone, most users wrongly assume that Facebook Contact Sync only syncs user pictures. In reality though, they are pumping your address book, without your consent." [Since then the Facebook app has clearly been updated with a warning.]

Facebook says you can remove your mobile contacts, but it's not clear that that will remove your mobile if someone else uploads it.

von Moos continues:
"2) Phone numbers are private and valuable. Most people who have entrusted you with their phone numbers assume you will keep them private and safe. If you were to ask your friends, family or co-workers if they are ok with you uploading their private phone numbers to be cross-referenced with other Facebook users, how many of them do you think would be ok with it?"

He also points to even more egregious problems: (a) can you be sure how Facebook, or its advertisers or partners or whatever it becomes down the line, will use that data? (b) why is it that Facebook takes all your mobile numbers, rather than matching names of contacts with names of friends? (c) sometimes, it gets the matches wrong - and incorrect (or faked) data that people have given to Facebook as their "contact" details (such as hotels or businesses) gets linked as being a "friend", or the lack of an international dialling prefix messes up the match, and means again that someone who you don't know is identified as a "friend" or contact.

von Moos concludes: "There are some contacts and phone numbers who's privacy I simply refuse to risk on the Web. Facebook has taken and continues to take liberties on behalf of their users. Their perception of privacy and their users perception of privacy is often very different. I don't think this is maliciousness on Facebook's part, but it does show me that Facebook is painfully out of touch with the needs and beliefs of their CORE users, who are still wary of the openness that a Web 2.0 lifestyle entails."

It's not clear whether the official Facebook for Android app does the same. We'd be interested to hear from you if you've noticed this with the app. Update: people in the comments seem to be saying that it does.

So - beware: Facebook quite probably has your details. More of them, in fact, than you might have thought.

SEE PHONE NUMBERS ON FACEBOOK!