Would in this case not be a lot safer if Joe had his Mycelium wallet locked by a very strong password? I personally have my phone locked with a pretty easy password for quick access, but all my Cryptocurrency apps are secured with very strong passwords so in case my phone is ever stolen, they can get some data off it but not my wallets.
For attacks like this, where memory is copied directly out of the device, what matters is if the data is encrypted. I have no idea whether the Mycelium application encrypts the seed with the password or if it's just a protection to be able to open the app, with the seed still stored unencrypted on disk.
According to Walletscrutiny, Mycelium provide reproducible open-source builds, so this is something that can be
checked in their code.
It's not just about fixing bugs; these are actual completely new security mechanisms that can kill whole 'families' of attacks and make certain things completely impossible.
Ok, let me give you few examples that are not directly connected with smartphones but can be applied for them as well, do you think that Windows 11 is more secure than Windows 10 or Windows 8 OS?
- I think that each new windows os is worse and it provides less privacy than previous versions.
Second example, do you think that modern laptops are better and more secure than proven older modular laptops?
- New laptops are mostly not modular, you can't replace or fix anything yourself, and they are made from cheaper materials.
As long as Windows 10 and 8 are still supported by Microsoft, they should all get the same security updates. After that, the old versions indeed, automatically become less secure. For instance,
ATMs still running Windows XP are a big security concern and some banks pay insane sums of money for Microsoft (or other companies) patching XP for the latest vulnerabilities.
Also, newer operating systems will get new security mechanisms, such as I've shown with iOS and Android introducing ASLR at a certain point in time, which automatically makes anything older, less secure due to just not having ASLR.
The other two points don't relate to security, but privacy and serviceability which are different topics. I prefaced my previous statement by saying that security and privacy don't always (have to) go in tandem.
New stuff is not always better, and it often times just opens a big new can of worms after each new releases.
Yes I know Linux OS doesn't mean something is safe, but I just want clean open source stuff without extra crap on top.
Oh absolutely! I love clean, open source machines with as little bloat as possible, too; just like simple vehicles without unnecessary loads of electronics in them. But again, that's another topic..
But operating systems do get more secure (big picture) overall. What else do you think security professionals were doing in the last 10 years?