
Some computer users are reporting that they have received a new type of extortion email in their inbox, which – in an attempt to scare them into giving in to demands for money – quotes part of their phone number.
For some time extortion emails have been sent to computer users, claiming that they have been secretly recorded while visiting pornographic websites in an attempt to blackmail them out of money.
Some of the extortion emails have even taken to including a user’s password in the email (albeit perhaps not related to an adult website they may have visited) in an attempt to shock the user into believing that their private use of a porn site might be exposed.
The latest incarnation of the emails, however, incorporates the four digits of a recipient’s phone number. And – get this – it often really is the correct phone number.
A typical email reads as follows (complete with the extortionist’s spelling mistakes and grammatical errors):
It seems that, +XX XXXXXX1234, is your phone. You may not know me and you are probably wondering why you are getting this e mail, right?
actually, I setup a malware on the adult vids (porno) web-site and guess what, you visited this site to have fun (you know what I mean). While you were watching videos, your internet browser started out functioning as a RDP (Remote Desktop) having a keylogger which gave me accessibility to your screen and web cam. after that, my software program obtained all of your contacts from your Messenger, FB, as well as email.
What did I do?
I backuped phone. All photo, video and contacts. I created a double-screen video. 1st part shows the video you were watching (you’ve got a good taste haha . . .), and 2nd part shows the recording of your web cam.
exactly what should you do?
Well, in my opinion, $1000 is a fair price for our little secret. You’ll make the payment by Bitcoin (if you do not know this, search “how to buy bitcoin” in Google).
BTC Address:
1GYNGZLEUGkkQjHo19dHDnGE87WsAiGLLB
(It is cAsE sensitive, so copy and paste it)
Important:
You have 48 hour in order to make the payment. (I‘ve a unique pixel in this e mail, and at this moment I know that you have read through this email message). If I do not get the BitCoins, I will certainly send out your video recording to all of your contacts including relatives, coworkers, and so on. Having said that, if I receive the payment, I’ll destroy the video immidiately. If you need evidence, reply with “Yes!” and I will certainly send out your video recording to your 6 contacts. It is a non- negotiable offer, that being said don’t waste my personal time and yours by responding to this message.
There are two obvious questions raised by the emails.
Why isn’t the extortionist including the whole phone number in the email?
After all, if the bad guys had it – wouldn’t they use it to get greater leverage over their intended victim? It’s not as though they give two figs about protecting a computer user’s privacy after all…
The only logical answer to this question is: the extortionist doesn’t have the whole phone number. They only have some of the digits.
So where did they get the partial phone numbers from?
I suspect the vast majority of people visiting porn websites don’t create accounts on the sites, and even if they did they would be wary of giving their real phone number. So the adult sites themselves seem unlikely to be the source of the information.
It’s possible the number is derived from a data breach where only four digits of a phone number is stored, and the extortionists have done a look-up to match numbers to email addresses… but why would a company only want to store some of your phone number?
Researcher Didier Stevens has a different theory.
He proposes that the numbers might be derived from the password reset mechanisms of popular websites.
Take a look at eBay, for instance.

Anyone can enter your email address on eBay, and (if you have an account on the site using that email address) it will tell them *some* of the digits of your phone number.
It’s a similar story with PayPal, and many other sites.

It should go without saying that I don’t recommend you pay the blackmailer if you receive one of these unpleasant emails. In all likelihood they are trying their luck, hoping they are able to scare just a small proportion of people into believing that they really do have video footage of a computer user as they visit a porn site.
If you are still worried that receiving such an email would scare the willies out of you, and you aren’t able to kick your porn-viewing habit, maybe now is a good time to invest in a webcam cover for both your desktop PC and your smartphone.
And while you’re at it keep your computer protected with up-to-date security software, ensure that your operating system and applications are fully patched, and consider running an ad blocker.
It may not stop you receiving a blackmail email, but it may give you a little more peace of mind.
For more discussion of this topic, be sure to check out this episode of the “Smashing Security” podcast:
Show full transcript ▼
This transcript was generated automatically, probably contains mistakes, and has not been manually verified.
Smashing Security, Episode 91: Sextortion, Las Vegas Hotels, and Alex Jones. With Carole Theriault and Graham Cluley. Hello, hello, and welcome to Smashing Security episode 91.
My name is Graham Cluley.
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Hi, Graham.
And an enterprise-grade solution like the one from LastPass, for instance, will have support for Microsoft Active Directory and funky functions like that to make it even easier to secure your business.
And not so very long ago— No, exactly, of course not. But not so very long ago, these emails were arriving and they were even including users' passwords.
And you think, crikes, not only do they email me and I do sometimes go to rude websites, but they also know my password.
Right? That'd just be crazy.
It's yours, isn't it? And what they do is they're including maybe the last 4 digits of the recipient's phone number.
And they're saying, we've got you, we've got you, we can expose you unless you do X.
So we've taken over your webcam, we've recorded what video you were looking at, and then sort of maybe 25 seconds into the video, we started recording you through your webcam as well.
And won't that be embarrassing?
And because these latest emails include some numbers from your phone number, maybe the last 4 digits or a couple of others, that makes you think, crikey, they must be onto me.
So they're going to just get emails and go, people are going to go, Yeah, do your worst, buddy. It's already out there.
But in the example I'm sharing, the blackmailer has only listed the last 4 digits of the phone number.
So my first question is, why isn't the extortionist including the whole phone number in their email? Because if the bad guys really had it, wouldn't they use it?
Wouldn't they make it clear to you, we've got your entire phone number and we know your Auntie Jean's mobile number as well?
They've only got some of the digits. So my next question is, so where did they get those partial phone numbers from? Is it that there's been a data breach?
But even then, why would any company only store some of the digits of your phone number?
Maybe some of the digits of your credit card number, maybe, but some of the digits of your phone number doesn't really make sense.
So researcher Didier— Oh, you got a theory, Carole?
I understand it's in a gray area, but if someone said, hey, you know, we salt your phone number, I'd be kind of like, oh, that's cool.
He proposes that the numbers might be being derived from the password reset mechanisms of popular websites.
So I, for instance, went to eBay and I have an account on eBay and I pretended I'd forgotten my password.
And it gave me the last four digits of my phone number there as well. And I think there are probably plenty of websites which will give away some of your phone number.
Now I don't go through the process and the extortionist doesn't go through that process either, but they've now got some of the digits of your phone number, which they can then put into an email to make it seem more convincing.
Run an ad blocker because sometimes popular porn websites have been compromised by malvertising, for instance, malicious adverts.
But also, you know, invest in a webcam cover for both your desktop PC and maybe your smartphone as well.
And yes, if you've got anything you need to cover up, cover it up with a Post-it note or a webcam cover or a tea cup.
Networking, seeing old friends, picking some locks, soldering some PCBs, whatever. Having a parlay, all these talking like pirates apparently. All these things are happening.
And it's been several years since I've been, but I worked those events, so it wasn't super fun for me.
But anywho, the biggest, there's always the press blitz of what's the big story gonna be out of DEF CON this year?
And years ago, I think you might remember the whole hacking of a Jeep thing, and there was a whole hullabaloo about that.
I think there's two stories in contention for the big stories out of DEF CON this year, but the one that I'm gonna vote for is actually, a story about DEF CON itself, and it's kind of inside baseball a little bit.
So let me set the story. Basically, I'm sure you remember last year in October in Las Vegas, there was a horrific massacre. How can you forget?
And since that terrible massacre happened last year, a lot of United States hotels have implemented new security policies.
And the big question is, are these policies security theater or are they justified?
And this question came up because basically all the DEF CON attendees came face to face with it last week.
So the do not disturb sign for the Caesars hotels, and DEF CON was at Caesars Palace this year, has a little tiny little fine print on the bottom.
And it says, say if you put the do not disturb sign on your door, right?
Even if you refuse housekeeping, quote, staff reserve the right to enter this room daily, even if the sign is displayed on your door, for maintenance, safety, security, or any other purpose.
And the note also goes on to say, hotel staff will knock and announce their presence before entering.
Okay, so we have that notification in theory from the hotel, but several attendees, and this is not just a scant few, this is a decent amount of people, including many solo female travelers, said their room was barged into while they were either bathing or changing without any warning.
So it wasn't just somebody knocking on the door. It's like they are, it's like somebody's just in their room and they had no idea.
In other cases, many attendees recounted instances of men banging at their door demanding to be let in right at that very moment, purporting to be from hotel security.
And then the supposed hotel security would not provide the attendee any way to verify that those men actually are who they said they are.
And you're going, I don't know you are who you say you are. You can show me a badge, but that's super easy to fake.
The card she was shown had the photo rubbed off.
She says it was only shown after I had been screamed at and the door pounded on, which was after I had politely asked to verify their IDs by calling downstairs.
I was trying to follow a reasonable authentication process. In fact, I was walking the supervisor on the phone through it as he talked over me about the necessity of the search.
I wasn't arguing about my privacy. I was protecting my life and my body from assault. He missed the point. And that is a huge, huge point right there.
So far, the response from the Vegas hotels have basically been, hey, read the terms of service, guys.
It's a new policy since the awful massacre last year, and as we all know probably, the shooter had a huge arsenal of guns in his room.
So we need to be able to verify that you're not hoarding all these guns in your room.
So I can understand from the hotel's point of view that they want to be really careful about this, maybe for insurance purposes if nothing else.
You know, there was a big massacre that happened and they're going to be held responsible or they're going to feel responsible for ensuring the safety of everyone, and they're probably going about it like a pendulum.
They've gone too far.
There's no way I'd want to go to stay in a hotel if that was a risk, someone pounding.
So the hotel says, yeah, you should not have any expectation of privacy. And a lot of people in response to all these incidents have been saying that as well.
And I think we mentioned that earlier, that you know, you're in a hotel, don't expect any— you know, people are going to be there.
But the hotel also said, we're only going to do a quick visual check, just a quick glance around your room. We're not touching your stuff.
Except this is DEF CON, so you got a lot of people who are really paranoid and they set up hidden cameras in their hotel rooms because they want to see if someone's actually monkeying with their shit.
So this is hearsay, but several journalists who are actually actively researching the story right now say they've been sent video from DEF CON attendees of hotel security rummaging through their stuff, taking photos of guest personal effects and overhearing the security guys threatening to put videos of what they found on Snapchat, that kind of thing.
So it's—
But things like soldering irons and lockpick sets, which are kind of de rigueur at DEF CON.
It's kind of the thing you do because I like lockpicking. Sorry, lock sport. It's not illegal if you call it lock sport. But yeah, people are saying their stuff's been confiscated.
So it gets really— so one can understand the hotel's point of view here. But flip side, the guests were going, this is a new policy.
We were really caught by surprise and saying, yeah, the terms of service is there in this tiny print at the bottom of the do not disturb sign is really not enough warning.
And the irony of security pros complaining about no one reading the terms of service is not lost on anyone here.
Yeah, you know, there will be a knock on your door, the person will identify themselves and explain what they're doing.
Saying, hey, we've got this fraud alert on your credit card, we tell them, actually, I want to call you back.
You know, why would we not have that protocol in place for something as scary as people physically coming into your space when you're by yourself?
We disclosed it to people, and frankly, this is now the new policy at almost all American hotels at this point.
Matt Linton, who is a Google security researcher, he's one of the guys who found the Spectre security hole in CPUs.
He tweeted while he was there about some really good attacks in Vegas.
And apparently the Las Vegas police saw this, were rather nervous about his language, and of course assumed the worst and came and had a chat with him.
And apparently they understood, you know, once they'd had the chat, they said, okay, we get it, we now know you're talking about software attacks in relation to the conference.
However, and they went away fine and apparently were very polite. However, Caesars threw this researcher out of the hotel at midnight and told him he wasn't welcome anymore.
And because there's clearly just a zero tolerance to anything like this because they're all being so paranoid. So I think a little bit more sensitivity and care is needed.
To me, one of the biggest things is there's a growing call from a number of attendees saying that they're not returning to DEF CON at all, ever, or to even Las Vegas at all, ever, because of these policies.
And I'm not surprised. They're saying it's overly intrusive security theater and just straight up not friendly to hackers.
And other people are saying either move DEF CON to another city or get it out of the United States entirely.
Because, you know, as we've seen with for example, United States TSA, once you have security measures in place, they don't tend to go away.
But I really hope the new room search policies are communicated and conducted in a better way, but I really cannot blame anyone for not wanting to go back to DEF CON after this.
I have been rudely barged in on actually, I remember at a hotel once it was, it was a room service maid sort of person and I was in a state of some déshabillé as I say, but I think I probably was less traumatized by the girl than her.
I mean, it's, you know, we're chuckling about it, but this is a nightmare. So I'm very curious to see how this develops. So watch this space, I guess. Crazy.
Now, unless you've been following the antics of this guy for, what, 5 years, it does look like a huge pile of nonsense, but there's been a lot going on, so I thought I'd kind of summarize it and then we could have maybe a little chat about it, because I think it's raising some important points.
So Alex Jones, the conspiracy theorist radio host, he's not what I would call a good faith guy. He's been running this Infowars for about 20 years.
It actually started as a public access TV show in Austin, and it's grown from there into all kinds of channels.
But I mean, his YouTube channel boasts at its height 80 million views a month. Oh my God, isn't that shocking? America, why?
So he has definitely earned the reputation of spreading unfounded, hateful conspiracy theories, right?
The most shocking of them was that the US government was in on the 9/11 attacks, or there was the Sandy Hook shooting.
He was saying it was a total hoax and that mourners were being paid. He's actually being sued by parents of the children who were murdered at Sandy Hook.
So anyway, make your own mind up. He seems to me to be crazy, dangerous, dangerous, dangerous, more crazy, I think.
You might remember Trump actually has been on the Infowars show where he praised Alex Jones and made promises to him.
He even gave Alex Jones of Infowars a temporary press pass to the White House in May 2017. So he has friends in high places.
But anyway, it seems that he has finally pissed off the wrong people. So first, Apple announced that it was going to stop distributing Jones's 5 podcasts and his Infowars website.
Now, this is the most powerful podcast distribution platform in the world, so this is kind of a big deal and shuts off a huge communication vector for him.
Then Jones was banned from Facebook, YouTube, and Spotify.
Spotify say they ban him not for his conspiracies, but because Infowars, quote, "expressly and principally promotes, advocates, or incites hatred or violence against a group or individuals based on characteristics," unquote.
I don't know whether this is YouPorn's PR department.
Facebook said, quote, more content from the same pages has been reported to us. Upon review, we take it down for glorifying violence, etc., etc. So again, the violent thing.
And a few hours later, YouTube also zapped Jones's channel. And get this, his YouTube views prior to the channel being removed were tallying in total 1.6 billion.
I find that shocking. 1.6 billion.
I'm sure most of that's legit, and that just makes me really sad.
Now they've come along and rather than banning him, they've slapped Alex Jones with a 7-day ban, but they haven't terminated his account.
Alex Jones may have gone on holiday to the Mediterranean, right? He may not be creating any videos or any podcasts for the next 7 days.
It's like he's gone on holiday for 7 days and then he'll be back on Twitter.
And he says it's up to journalists to sort out the BS from fact. I am paraphrasing.
So it's critical journalists document, validate, and refute such information directly so people can form their own opinions.
This is what serves the public conversation best, he says.
Well, I went and looked at the Twitter rules. And inside the Twitter rules, it says, do not incite violence, do not engage in abuse or hateful conduct.
But they do have this kind of carte blanche thing which basically says if it's newsworthy, we can change our minds.
Why did all the other companies only act once Apple started it? Well, what's up with that domino effect?
And thirdly, Twitter's position on this has been super wishy-washy and basically them, they have these terms of service.
And she created a very easy way to mass block all of these companies so that they would no longer be appearing in your feed.
But the other rule, it seems to me, the other commandment is you must not do anything which damages Twitter's potential to make some money.
And that's why they turn a blind eye to Donald Trump calling former staff members dogs.
And that's why they allow Alex Jones to carry on spreading his hate and plenty of other unpleasant stuff as well. And they know that most of us aren't going to quit Twitter.
Do you guys think that these bans basically say that tech companies are now admitting to some accountability or say as to what they allow to be publicized on their services?
And having worked at newspapers before, I mean, when you get countless letters to the editor and a lot of them are from straight-up kooks, people who are absolutely crazy, and these letters often will threaten the journalists and say really scary, weird, off-the-hinge things.
But the editor has the discretion to say, you know what, I'm not going to publish this because this doesn't serve public good.
But we don't have that kind of judgment or ethics amongst these players. Some people would call that gatekeeping. And I understand where that's coming from.
People are saying, oh, it's censorship or gatekeeping. And I think it's an interesting discussion.
But seriously, does a letter threatening a journalist's life actually add to discussion?
And the same thing with Alex Jones, he's not just a conspiracy theorist, that really reduces the amount of harm he's doing. Conspiracy theories in America are everywhere.
And that's like, you know, did we land on the moon or not? Okay, fine.
If I invite someone round to my house for dinner, and if they're offensive to other dinner guests, then I might say, you know what, do you mind leaving? And I won't invite them.
And if you want to do that in your house, then go ahead and do it, or find your own little murky corner of the internet.
But, you know, he can set up his own stuff. Why does he have the right to use another company's platform to spread this info? I don't think so.
But, you know, if somebody decides that something I'm saying is now not acceptable and I get permabanned, what's—what does that mean?
So, you know, I'm always a little like, oh, this is scary. But, yeah, I don't know, cagey about it.
I feel like we need a bit of a shower, and we might need to—I think we need to clear our palate a little bit.
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It could be a funny story, a book that they've read, a TV show, a movie, a record, a podcast, a website, or an app. Whatever they like. Not security related necessarily.
Doesn't have to be.
It is a website called lichess.org, and the nice thing about Lichess is it is a completely free chess internet server with all the features that you would expect.
Everything is free. You can't give them— well, you can give them money to support the server and things, but no ads, and you get no ads or anything like that.
And it's not just chess. You can also play chess variants like Chess 960 or Antichess and all those crazy things.
And you can go and see maybe—
And it's called Octopath Traveler.
And they have their own path. But yeah, you're very welcome for the etymology lesson. I'm here.
So anyone who loves Super NES video games, RPGs like Chrono Trigger or Final Fantasy 6, this is in that vein. And no idea what she just said.
Well, I was trying to keep it simple, and then when I go nerdy, you don't know what I'm saying. I gotta find the middle ground.
It's great. They're waiting for you.
It sold 110,000 copies in the first week, which is a big number.
So if you've heard about it and you're into JRPGs and you're, "I don't know if I should play it," I'm giving you my recommendation.
It's not perfect, there's problems with it as with any game, but it's—
And after only watching 1 minute of it, it cheered me up and made it my pick of the week. Because of course I've just told the story, so you're all sad out there.
So all you gotta do is watch this video.
Now this is basically a pastiche video where they take Alex Jones and his actual words, but they put a little melody and harmony around it and cheer it up a little bit.
All right, see what you think. Just click on the link right now. Just wait, just wait. Green looking skin.
Maria, if people wish to follow you on any of the social networks, maybe you'll have left Twitter by the time this—
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Dude, you've missed the forrest for the trees. Everyone (at least in the US, and probably in the UK) have had every bit of informtaion that Equifax had on them stolen. Don't you think it would include phone numbers, email addresses, credit card statements from adult entertainment companies, etc.
There's absolutely no end to the shitstorm that we could soon be facing, since they already know more about us than we do ourselves.
If the full phone number has been exposed by a data breach, why isn't the extortionist including the full phone number in the email? It doesn't make logical sense to me.
Typo:
"If you are still worried that you such an email would scare the willies out of you"
I need this job ????