Pay some teen $20-$50 to go get them and drop them off to you at rendez-vous point. Make sure it's well understood s/he doesn't know you, and ask what they're gonna say if asked and correct them as needed ("Some guy/gal paid me to get them. I don't know name or location, but the money was good.").
take your example. you pay cash, but it's most likely rung up on computer cash register, so time, date, method of payment is logged. that receipt log can now be correlated with CCTV to pinpoint who was in the store at that time making the purchase, and this may be extended outside the store, depending on if other CCTV systems are available to piggyback off of, to follow you further (to car, neighborhood, home, friend's home, etc.).
but don't forget that that phone's info can be obtained from its inventory log, and each phone is unique on the network. so just from your purchase, they can already identify the phone. from there, not difficult to trace it on the network and then use various targeted mobile surveillance techniques to then reveal the owner. and all this can still be correlated with CCTV data as well.
btw, do you use only burner phones? or do you have a main phone? did you take that main phone with you to the store when purchasing the burner phone? oops!
hard to know. in the days of local storage, probably not long. i once worked at a large manufacturing company over a decade ago, and even they didn't keep recordings more than 2 weeks, believe it or not. these days with cloud storage and the general inexpensiveness of storage space, who knows? you'd have to get insiders to divulge.
My home DVR (500GB) holds about 3 months (4 cameras) of video before overwriting it. My thinking is, in addition to all other opsec, keep the phone without a battery for 6+ months before using it. Have it before you need it, don't put the battery in it at your home, and don't use it in places with a lot of cameras where they might trace the towers just like they might trace point-of-origin.
good. but i forgot to add that that other phone could still be a problem. leave it at home reduces chances, but you do have another phone, likely registered to you (?), that is broadcasting your location and other data. could this somehow be used to tie you to a burner in its vicinity?
perhaps others can weigh in on this point because i'm just speculating. but seems to me if you're going to burn phones, that should be all you do (keep a hard copy of family contacts and such).
sorry, secure SIM cards, that's beyond me. i've only read about it, but know nothing of the technical details.
this would be what /u/wildeep suggests (/post/731b0187bd2919f64bf9?p=1#c-46274b3ea264e4b435), and it sounds very reasonable to me.
these are dangerous times for surveillance. avoid mobile if you can, and if you do, you cannot be too careful. that said, facial recognition technology being the new kid on the block will make - is making - it even more difficult to ghost the powers that be.
less cameras the better, just don't keep going to the same one. Wear some concealing clothing but don't stand out. Most of the stores you'll find them are wired up.
take your example. you pay cash, but it's most likely rung up on computer cash register, so time, date, method of payment is logged. that receipt log can now be correlated with CCTV to pinpoint who was in the store at that time making the purchase, and this may be extended outside the store, depending on if other CCTV systems are available to piggyback off of, to follow you further (to car, neighborhood, home, friend's home, etc.).
but don't forget that that phone's info can be obtained from its inventory log, and each phone is unique on the network. so just from your purchase, they can already identify the phone. from there, not difficult to trace it on the network and then use various targeted mobile surveillance techniques to then reveal the owner. and all this can still be correlated with CCTV data as well.
btw, do you use only burner phones? or do you have a main phone? did you take that main phone with you to the store when purchasing the burner phone? oops!
What about storing burners at my flat though, won't that make it useless anyway?
So, when getting a new sim, and burner, have someone do it for me to be secure?
any idea how to get a sim card anonymously?
perhaps others can weigh in on this point because i'm just speculating. but seems to me if you're going to burn phones, that should be all you do (keep a hard copy of family contacts and such).
sorry, secure SIM cards, that's beyond me. i've only read about it, but know nothing of the technical details.
Do people hide their burner phone then somewhere and never use it at home?
these are dangerous times for surveillance. avoid mobile if you can, and if you do, you cannot be too careful. that said, facial recognition technology being the new kid on the block will make - is making - it even more difficult to ghost the powers that be.