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2019-01-06 11:43 by Karl Denninger
in Technology , 149 references
[Comments enabled]  

Cox has mis-spelled their name.

But they're not the only ones.  Xfinity might be better known as something obscene too, and I'll have to work on that and I'm sure I can come up with something appropriately gutter-worthy.

Ed: Ah, ok, buttseXfinity was suggested below.  I like it.

A month ago I wrote on Widespread IPv6 Issues.  

A month later and... same crap and not just in the two places, and on the two providers, where I was seeing it originally.  I've now made a point to try to get IPv6 addresses and use them when traveling on a routine basis (didn't used to pay much attention) and what I've found is that the connection issues are literally everywhere.

Now most people in their residences are probably running with this shut off for now, so they're not seeing it.  That won't last.  Defaults will change and Windows will automatically grab and prefer IPv6 if it can find it.  Android phones will as well.  So as soon as the defaults on consumer WiFi access points and cable routers change to "IPv6 enabled" so that nobody has to do anything for it to come up you're going to see an instant explosion of trouble.

I guess I shouldn't really be surprised that despite this being allegedly "deployed" for many years now given the effective monopolist structure of "last mile" for most consumers (one cable company you can buy from in most places, so no real choice) that their level of rank incompetence would be second only to that of Congress and the FBI.

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2018-12-24 07:00 by Karl Denninger
in Technology , 141 references
[Comments enabled]  

This is this common claim that calling something a thing makes it a thing.

You can make a man a woman by calling him "her".

You can make a woman a man by calling her "him."

And you can make data "anonymous" by replacing someone's name with a numerical value of some sort.

Uh huh.

When it comes to data this never works as soon as the data set that can be correlated gains any sort of size.

(Reuters Health) - - For years, researchers have been studying medical conditions using huge swaths of patient data with identifying information removed to protect people's privacy. But a new study suggests hackers may be able to match "de-identified" health information to patient identities.

Hackers?

You don't need hackers.  You merely need all the commercial people out there like Facesucker, sCroogle and crApple, to name three.  It would be nice if the risk was limited there but it isn't; there is literally no way to quantify or limit the risk.

The problem is that "removing" identifying information doesn't really remove it.  Replacing a name with some sort of unique identification tag, whether generated "securely" or not, means nothing as soon as the person who has the data can correlate it with other data sets.

In virtually every case there is enough data out there that given correlation analysis you can trivially match up original persons with the so-called "de-identified" data.  This is why what Google claims to do with Android, and Apple with IOS, is an out-and-out fraud.  It is flatly impossible to provide "enhanced" or "personalized" advertising, for example, and not implicate the ability to immediately match that person back to a physical individual and any other data sets that can be correlated to it, such as so-called "de-identified" medical information.

As I have repeatedly pointed out in these pages it would be trivial for a terrorist group to compile a list of people who are 99%+ likely to be military members, or cops, or politicians of some specific description, or teachers, or {insert whatever}, having an exact record of who they are and when they are at certain specific places, like their homes.

Of course if you know that you can assassinate all of them should you so choose and the manpower to do so is trivially small since your "false positive" rate is near-zero.

Why hasn't it happened yet?  I would argue it's simply because there aren't enough people willing to commit suicide in such a mission to do it, and nothing more.

But there are plenty of businesses willing to abuse data like this to screw you, they don't have to commit suicide to do it as nobody goes to jail in this country if you run a big company no matter what you do and as a result you can bet this is going on right now, especially when it comes to high-cost, low-incidence items like insurance.

There's no way to fix this other than to ban the correlation analysis and forbid the collection of so-called "de-identified" data in the first place under severe felony (as in "pound you in the ass" prison) liability that attaches to any firm's executives on a personal basis should they engage in same.

The odds of that happening given the idiocy of Americans and their refusal to wake up and demand that this crap stop is zero -- right up until and probably beyond the point that such an abusive practice takes the lives of thousands.

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2018-12-03 09:43 by Karl Denninger
in Technology , 224 references
[Comments enabled]  

Someone -- or more like a few someones -- have screwed the pooch.

IPv6, which is the "new" generation of Internet protocol, is an undeniable good thing.  Among other things it almost-certainly resolves any issues about address exhaustion, since it's a 128 bit space, with 64 bits being "local" and the other 64 bits (by convention, but not necessity) being "global."

This literally collapses the routing table for the Internet to "one entry per internet provider" in terms of address space, which is an undeniable good thing.

However, this presumes it all works as designed. And it's not.

About a month ago there began an intermittent issue where connections over IPv6, but not IPv4, to the same place would often wind up extremely slow or time out entirely.  My first-blush belief was that I had uncovered a bug somewhere in the routing stack of my gateway or local gear, and I spent quite a bit of time chasing that premise.  I got nowhere.

The issue was persistent with both Windows 10 and Unix clients -- and indeed, also with Android phones.  That's three operating systems of varying vintages and patch levels.  Hmmmm.....

Having more or less eliminated that I thought perhaps my ISP at home was responsible -- Cox.

But then, just today, I ran into the exact same connection lockup on ToS's "Trader TV" streaming video while on XFinity in Michigan.  Different provider, different brand cable modem, different brand and model of WiFi gateway.

Uhhhhhh.....

Now I'm starting to think there's something else afoot -- maybe some intentional pollution in the ICMP space, along with inadequate (or no!) filtering in the provider space and inter-provider space to control malicious nonsense.

See, IPv6 requires a whole host of ICMP messages that flow between points in the normal course of operation.  Filter them all out at your gateway and bad things happen --- like terrible performance, or worse, no addressing at all.  But one has to wonder whether the ISP folks have appropriately filtered their networks at the edges to prevent malicious injection of these frames from hackers.

If not you could quite-easily "target" exchange points and routers inside an ISP infrastructure and severely constrict the pipes on an intermittent and damn hard to isolate basis.  

Which, incidentally, matches exactly the behavior I've been seeing.

I can't prove this is what's going on because I have no means to see "inside" a provider's network and the frames in question don't appear to be getting all the way to my end on either end.  But the lockups that it produces, specifically on ToS' "Trader TV", are nasty -- you not only lose the video but if you try to close and re-open the stream you lose the entire application streaming data feed too and are forced to go to the OS, kill the process and restart it.

The latter behavior may be a Windows 10 thing, as when I run into this on my Unix machines it tends to produce an aborted connection eventually, and my software retries that and recovers.  Slowly.

In any event on IPv4 it never happens, but then again IPv4 doesn't use ICMP for the sort of control functionality that IPv6 does.  One therefore has to wonder..... is there a little global game going on here and there that amounts to moderately low-level harassment in the ISP infrastructure -- but which has as its root a lack of appropriate edge-level -- and interchange level -- filtering to prevent it?

Years ago ports 138 and 139 were abused mightily to hack into people's Windows machines, since SMB and Netbios run on them and the original protocol -- which, incidentally, even modern Windows machines will answer to unless turned off -- were notoriously insecure.  Microsoft, for its part, dumped a deuce in the upper tank on this in that turning off V1 will also turn off the "network browse" functionality, which they never reimplemented "cleanly" on V2 and V3 (which are both more-secure.)  Thus many home users and more than a few business ones have it on because it's nice to be able to "see" resources like file storage in a "browser" format.

But in turn nearly all consumer ISPs block those ports from end users because if they're open it can be trivially easy to break into user's computers.

One has to wonder -- is something similar in the IPv6 space going on now, but instead of stealing things the outcome is basically harassment and severe degradation of performance?

Hmmmm....

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2018-06-06 16:23 by Karl Denninger
in Technology , 101 references
[Comments enabled]  

Nope, nope and nope.

Quick demo of the lock support in the HomeDaemon-MCP app including immediate notification of all changes (and why/how) along with a demonstration of the 100% effective prevention of the so-called Z-Shave hack from working.

Simply put it is entirely under the controller's choice whether it permits high-power keying for S0 nodes.  For those controllers that have no batteries and no detachable RF stick, which is a design choice, there's not a lot of option.

But for those who follow best practice that has been in place since the very first Z-Wave networks you're 100% immune to this attack unless you insist and intentionally shut off the protection -- even in a world where S2 adoption becomes commonplace (which certainly isn't today but will become more-so over time.)

HomeDaemon-MCP is available for the entity that wishes to make a huge dent in the market with a highly-secure, very fast and fully-capable automation, security and monitoring appliance, whether for embedded sale (e.g. in the homebuilding industry) or as a stand-alone offering.  Look to the right and email me for more information.

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2018-05-31 13:27 by Karl Denninger
in Technology , 143 references
[Comments enabled]  

There's a story making the rounds that appears to have some corroboration at this point, but my sourcing is too thin (and specific to people) to document.

Apparently if you bought an "Alexa" and activated it you can wind up with an un-asked for Prime subscription and it can wind up linked to some other card you have out there that Amazon managed to get their claws on.

Of course some people won't care because their entire point of buying one of these "Smart speaker" things is to link it with Prime for their "shopping" purposes.  Well, ok, but whatever happened to informed consent?

There might well be, somewhere, one of those "buying this will subscribe you to X at price Y" deals somewhere in the fine print on the startup or registration page.  In fact I wouldn't doubt it if it's there somewhere, maybe in the "click-through" terms and conditions that nobody actually clicks through and reads the entirety of.

My question is why is this sort of thing happening at all?

Let's be real here: These so-called "smart speakers" are anything but.  They aren't "smart", they're pattern-recognition devices and you're the pattern.  They're linked to "the cloud" because the CPU, RAM and similar requirement to run voice recognition is quite high but extremely bursty since you only give the unit a command once in a long while; the rest of the time it is either idle or (and you hope it's not!) simply recording what it hears.  Putting the capability for fast, decently-accurate response in the unit when it would be active 0.1% of the time at most is why these devices are all "cloud-powered"; they would be stupid-expensive if not.

But these things don't exist for your benefit, they exist for someone else's benefit.  If you want to know what sort of imagery gets conjured in my mind when I hear of people installing and using them it's from the first part of WALL-E..... you know, this one.

Yeah.

That looks appealing.

Not.

Heh, I get it.  You like convenience.  So do I.  I like being able to see what's going on in my house, even if I'm not there, especially if I get alerted to something sketchy going on.  After all that video evidence is useful for the cops to prosecute someone with if they try stealing my stereo.  I like sitting in the bar, pushing a button, and having the hottub ready for me when I get home a half-hour later.  That's convenient.  And I like knowing with hard confirmation that I really did remember to close the damned garage door on the way out.  Peace of mind and all that.

But all of this nonsense in today's world seems to be centered around not your convenience and security, but rather someone else mining your data for profit, not telling you what they're doing with it, or even lying about when they collect it, for what purpose they use it, and who gets access to it.

In our world of today we don't jail executives for that sort of crap.  We should, but we don't.

I get the limitations as well. But what I don't get is the insane price ripoffs that come with it, never mind the privacy and data security implications, especially when you bring something like this into your house or, even worse, your bedroom.

For an example price out a "NEST" thermostat.  You'll blanch.  For half the price I can buy a Z-wave enabled thermostat from Trane.  You probably heard of them -- they make air conditioners and heating systems and have a decades-long history of building high-quality, reliable gear.  It doesn't need "connectivity" to work; it's a thermostat.  Indeed, the one on the left at that link is the one I have in my house.  Oh, and it monitors service intervals too (e.g. for your filters), which is nice -- and you can set them to suit the level of general dust and such in your environment.  But, you can talk to it over Z-Wave and both see what's going on and control it if you want to.

Like, for example, right here:

 

That's real-time, right now, and if I tap it I can change the temperature it's set for.  HomeDaemon-MCP has an outdoor temperature sensor and switches its mode automatically; there's no need to be in "auto" or "heat" mode around here for half the year or more; if it's 70+F outside you won't want heat!  But in the "middle seasons" it's nice to have it automatically switch between the two because there might actually be a reason for that, and in many other parts of the country (especially at higher elevations) where temperature swings of 30-40F are not uncommon during a single 24 hour period it's very useful.

Someone who buys HomeDaemon-MCP and stands up the business to retail it could easily sell the entire package including the controller, a software license and the thermostat for the same sort of money as one "Nest."  But what you'd get is not just a thermostat in that case -- it can run your entire house at the cost of simply adding more modules that are reasonably priced.

Want a camera too?  Nest wants $200 for them.  What?

Amcrest wants $81 for an indoor camera with double the resolution!  If you're happy with the same 1080p that Nest offers and shop around you can get 'em for about $60, or less than a third of the price.

Instead of demanding you use a "cloud" service which inherently means no security as the data is not yours and is being stored and transmitted to a big company that might use it for "whatever" (good luck proving it if they do and you'll need an act of God to hold them accountable if you catch them either doing so or someone hacks it and uses it to target your house for a break-inwith HomeDaemon-MCP only you ever have the data, your cameras can be 100% firewalled from the outside so they cannot speak in or out beyond the perimeter of your network directly and yet you can have access to both snapshots (which you can have it take when it sees movement, etc) and real-time, streaming video any time you'd like over a high-grade encrypted connection from anywhere.

Oh, and the second camera isn't another $200+ either -- or $300 if you want one in an outside-rated enclosure!

With a couple of motion sensors and a garage door sensor (magnetic) you can set it up so that the camera automatically points at the wall when you're home (for the paranoid), when you leave it "arms" itself and points at the room, and if there's motion seen without the "authorized" path being taken (e.g. opening your legitimate garage door with the button in your car) you get alerted immediately so you can grab a video or screen shot for the police. 

What the hell is wrong with people?  Do you really want a copy of video of your house to be in someone's cloud machine ever?  Think about it folks -- we're talking about data that if some malefactor gets ahold of it and pattern-matches it they can figure out if you're home, when you're home, when you go to work and when you're on vacation!

Why the hell would you want that data anywhere except on your premise and on your personal device on demand only and delivered only over a secure connection if it ever leaves your home at all?

Never mind that it's better, faster and cheaper to do it that way.

So who wants to make a billion dollars?  The ask for the entire package will never be lower than it is now; there is exactly one thing needed to deploy it commercially and that's a customer-facing web interface to automate the certificate keying the license system uses.  The code to actually use those certificates and enforce them is already in the package as is the server side which can hit a Postgres instance (in other words nearly-infinitely scaleable and easily extended as you may wish.)

Is there actually a desire to sell products and services to people any longer that are theirs, that deliver value to the customer, or has everything turned into a scheme to data-mine you, get you to pay two, three, five or ten times as much for less functionality and try to stick you with a recurring bill you can't opt out of without turning your investment into dust?  Adobe anyone?

If you want to be that guy or gal that disrupts this space, look to the right and email me.

The answer to the problem is ready to go -- right here, right now.

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