Earlier quoted context omitted.
it's not a tumor. i mean a typo. 80 bytes multiplied by one million times per second equals 80 million bytes (also known as 80 megabytes) per second
You are right. Thank you for clarification.
sure, happy to oblige
LG washing machine sending 3.7GB of data a day
221–230 of 256 posts
Re: LG washing machine sending 3.7GB of data a day
#222The router was misreporting network activity. The machine wasn't sending 3.7GB a day. It says so in the article.
That is incorrectly reported.
Re: LG washing machine sending 3.7GB of data a day
#223Which OS are these machines running? Are we still doing RTOSes here or have we moved to a full Yocto linux image?
Re: LG washing machine sending 3.7GB of data a day
#224Earlier quoted context omitted.
Does it matter? It shouldn't be hogging bandwidth like this, that's a failure by itself regardless of whether there another failure state at play. Also, I'd have to question any washing machine that can generate 'massive amounts of error logs'. 3.7 G / Day is an insane amount of data.
a program running on a 480 megahertz microcontroller can quite reasonably crash a million times a second; even a single 80-character error log line would be 80 megabytes per second or 7 terabytes per day. and it would be reasonable to record more telemetry from a crash than a single line
How far we have come. Back in my day, a program could only crash a few thousand times a second.
Re: LG washing machine sending 3.7GB of data a day
#225Earlier quoted context omitted.
My Ubiquiti UniFi UDM is not good at device identification. It's kind of annoying because I have this big list of devices on the network and it's peppered with devices that I know don't exist. I'd appreciate it if it said something like "Maybe iPad Air", instead of just "iPad Pro 2nd Gen" when I know no such device is on my network.
Occasionally it's fun to discover new devices. "It thinks my WiFi dog feeder is a Technoelectrocom 56XR-2000? What the hell is (was) that?"
I found out that unifi plug in doorbell chimes use an esp32 this way because I saw one on my devices table, before it had booted fully and handshook as it's real Identity
Re: LG washing machine sending 3.7GB of data a day
#226I just wonder which of LG's competitors ordered this nonsense.
Re: LG washing machine sending 3.7GB of data a day
#227Earlier quoted context omitted.
I could easily see it measuring the forces and weight on the drum every 5 seconds (or even every 10 ms) during the whole wash, to be able to produce charts of vibration patterns, that engineers could use to correlate with failure. Remember -- when you're spinning at high speed to wring out the water, it's actually some pretty crazy strong forces. Or other things measured every ~second, like stuff related to the motor…
When I worked in a storage group years ago, the system that controls swipe card access for a building generated something like 3TB of Java exceptions a month. Because of the criticality, it was on high tier reliable SAN storage, replicated to a second site. IIRC, storage was like $80 Gb/mo.
Love how you said exceptions, rather than just logs. I am unfortunately (painfully) aware of exactly what you mean. The storage costs were the cherry on the top. But seriously, $240k and nobody raised a stink?
Re: LG washing machine sending 3.7GB of data a day
#228Earlier quoted context omitted.
Don’t need an open port to be a useful part of a botnet
Yes, but if it's behind a NAT gateway, how is it going to get the initial infection? I know there are ways, but realistically none of them make sense in this context.
Yeah, you'd need someone on the network to be doing something like browsing the internet and coming across a malicious website capable of making requests to other nodes on the local network, or downloading something that gives an attacker userspace access to scan the local network.
Those situations strike me as super rare, unlikely, and unrealistic, too.
Re: LG washing machine sending 3.7GB of data a day
#229Earlier quoted context omitted.
Our washing machine and dryer are networked (Bosch). Current benefits are secondary reasons and I could live without them: - Notifications when done: Nice, but a beeper would work, too. - Select program via App, based on what I put into the machine: Occasionally useful when I'm not sure. Also, I can put in my wife's cloths and let her pick the correct program (I did that wrong once and we both don't want that to happ…
> Select program via App I'm guessing this was mostly the reason it has any connectivity at all. If they can convince you to run an app they can start getting all kinds of data off your cell phone 24/7 if they wanted to, even if the app requests no permissions at all.
Living in Europe the GDPR applies, and with Bosch there is a better chance that they stick to it compared to other brands. Of course I don't know for sure.
The app transferred 1.56MB of data in 3.5 months. While the could include lots of data that I don't want them to have, at least it's not a massive amount indicating non stop tracking.
Ultimately you're right, and I would love to have the two appliances fully local (the other smart things don't even have Internet access, thanks to awesome projects such as Tasmota or Valetudo), including fancy program selection.
Re: LG washing machine sending 3.7GB of data a day
#230For those who do not want WiFi on their appliances you still can get highly rated reasonably priced washing machines without WiFi, even from the companies that are putting WiFi in nearly everything. E.g., I recently bought an LG WM3400CW washing machine for $650. On Consumer Reports it is tied for 3rd on the front loader ratings list. The LG 3900 and 4000 are tied for #1 with overall scores of 87, then the 3400, 8900…
> On models without WiFi it uses sound. The washing machine plays sounds that sound similar to the sounds that acoustic modems made back in the pre-broadband internet days. Their mobile app listens to those and extracts the diagnostics data. That's actually pretty cool! I think we should use this for more stuff to help usher in the R2-D2 future.
I don't know how other smart speakers (eg. Google Home/Alexa) do this, but the Yandex Station smart speaker uses this for initial wifi setup. You enter the Wifi password on your phone in their app, then your phone plays a series of sounds in which the SSID and the password are encoded, the speaker listens to that and connects to the network.