hydroacetylene
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User ID: 128
hydroacetylene
8hr ago
Usually commercial freezers have a manual defrost switch to test functionality or restore operation after a freeze up caused by misuse, which is what they triggered.
hydroacetylene
19hr ago
Yes, running defrost heaters and the compressor at the same time is very bad for the system, like sugar in the gas tank level bad. But that's not what sticking the system in defrost does; it normally prevents the compressor from running at all. That guy bypassed stuff manually which in his case blew up the system(normally it just tanks the compressor).
hydroacetylene
21hr ago
A stuck in defrost wouldn't necessarily cause short cycling(although depending on the control setup there might be some). It would just keep the freezer off. They could replace the controllers with mechanical versions pretty quickly if they can get skilled labor onsite in time, but they wouldn't expect to have a controller programmed to stay in defrost indefinitely- no one would do that on purpose.
hydroacetylene
22hr ago
It was probably put together by career HVAC techs who told them to set up communication via a web portal so they could initiate defrosts* on their cellphones, and then set the passwords to their lastnames.
*For those in the back who don't know, commercial freezers are supposed to have an electronic defrost that clears ice off the evaporator so it doesn't inhibit airflow. This attack worked by reprogramming that defrost to never end.
You are aware these are freezers, right? Like they're important but they're not holding onto private data or whatever.
Emerson writes the password on the device for technicians to have access to, and Ke2therm uses all fives(no, it can't be changed).
hydroacetylene
1d ago
They had inbound open ports to allow their maintenance managers to change settings store managers were messing with, probably. But why they didn’t take security precautions to prevent that I don’t know. Probably because they’re career hvac techs and it doesn’t occur to them that someone would want a freezer to stop working.
What were the hackers after? Ransom ware?
hydroacetylene
1d ago
All of these manuals are online for technicians to read.
hydroacetylene
1d ago
Yes, all of that stuff is absolutely industry standard- because most of these freezers are worked on by contractors with an end user who don’t know nothing about nothing and they need a default admin password.
Their main competitor is even worse.
hydroacetylene
1d ago
This system was not designed by IT professionals.
hydroacetylene
1d ago
Why freezers needs to be visible, why do they need to be remotely managed, why is not this done on dedicated internal network, why do they need firmware updates
Having worked as a refrigeration tech before, I may have some insight- this was almost certainly done for management and monitoring. Defrost cycles are very important to keep freezers from bricking themselves, and danfoss controllers are very common as an alternative to a mechanical time clock- because they’re fully programmable to the conditions of the specific box.
Why they were connected to the internet is probably because corporate wanted to be able to mess with it without sending someone in person. The stated reason was probably so they could set passwords but in reality it was to make in house maintenance personnel’s lives easier.
hydroacetylene
2d ago
The church does not align perfectly with woke lib-left talking points. They merely happen to oppose the death penalty, as is elite consensus in Europe, even on the right.
It's generally best to model the Catholic church as having similar policy positions to the Europe's conservative elite- because by and large, that is who makes up the upper church administration. Bishops in the Roman curia are mostly from elite, conservative families in continental Europe. That means that yes, they believe in global warming, don't have vibes based opposition to immigration(because that's not an elite thing), oppose the death penalty, don't support the right to bear arms, etc- but also have hardline sexual morality views, are generally opposed to socialism, tend to be bioconservative, support gender roles, etc. The RCC is run by elites and has official positions which tend to be shifted towards elite consensus.
hydroacetylene
2d ago
Clan based societies actually don't use the death penalty very much- they punish serious crimes with fines, that the entire family of the guilty pays into. Feuds happen when the two clans can't agree about it. The death penalty tends to be a feature of states.
hydroacetylene
2d ago
Texas did put police in the way of the open border and Biden just... let them.
hydroacetylene
2d ago
Ukraine isn't a client state- they get weapons from all sorts of countries(Turkey, the USA, Poland, etc) to continue a war that they fully intend to keep fighting until their entire male population is dead or Russia gives up.
hydroacetylene
2d ago
The homily at mass this morning began with a metaphor to the crac des chevalier, a crusader era fortress which successfully repelled assaults by artillery and aircraft having forces in the Syrian civil war. This got me thinking- what’s the longest continuous use of a not-uprgraded/remodeled fortress in active military service(to rule out things like the kremlin and Tower of London which are old fortresses used today for non-combat purposes)? I’m doubting the crac des chevalier is it.
hydroacetylene
2d ago
Far more likely that they’ll change the law to allow nitrogen asphyxiation.
hydroacetylene
3d ago
Strangulation hanging is the low tech version, it was superceded in the commonwealth with the development of long drop and then adopted by other modern users of hanging.
hydroacetylene
3d ago
TIL Taylor Swift is right wing.
hydroacetylene
3d ago
It's a classic high-low alliance. The outcasts and dregs of society will be kept outside and used as enforcers- a better deal than polite society usually gives them.
hydroacetylene
3d ago
Because unlike Oklahoma, Tennessee has not defined statutorily that the use of nitrogen asphyxiation rather than veterinary medications is an accepted method of execution. Why this is is probably because Tennessee doesn't execute people very often and so never felt the need to change their method.
Most US executions are carried out in just a few states- Texas Georgia and Florida(the three big southern states), and Alabama and Oklahoma. Texas and Georgia have political reasons for being unable to change anything about their death penalty. Alabama, Florida, and Oklahoma have alternative methods enshrined in law.
hydroacetylene
3d ago
Nitrogen asphyxiation is currently only used in Oklahoma. Lethal injection is the method used for most executions in the US and it's typically done with either a drug cocktail or an overdose using veterinary drugs.
hydroacetylene
3d ago
IIRC there's two methods of hanging, and the US used strangulation hanging which is genuinely inhumane. The commonwealth and many oriental countries use(d) long-drop, which is not inhumane.
hydroacetylene
3d ago
Uh, renaissance painters were a bit, shall we say ... fruity... themselves, and may have been importing their own preferences into their art.
hydroacetylene
3d ago
There won't be liters upon liters of blood gushing out. There will be blood, yes, but most of it will remain inside his corpse- .308 rounds do not kill by exsanguination.
Heavily Hispanic areas in the US tend to be represented by extremely moderate democrats.
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