Collaborate Disseminate
Say I have this computer that I bought and followed a manual to physically remove all communicating modules on its motherboard, including Wi-Fi adapter, Bluetooth adapter, etc. Assuming physical security i.e. no one can see my screen throu… Continue reading Does physical removal of all communicating modules on the motherboard ensure complete safety, assuming physical safety?
I’ve been looking into rowhammer attacks and mitigations and there are two (what seem to be) mitigations that I’ve seen that are actually implemented in currently available hardware and software, but aren’t mentioned in any studies I’ve se… Continue reading Rowhammer mitigations in current hardware and software
I have physical access to a Linux computer (Ubuntu 20.04). My colleague asked me what an attacker could do if he had physical access to this computer?
I would like to know if, by default (after a fresh installation), it is possible to plug… Continue reading What can an attacker do with physical access to a Linux server?
Floppy disks used to have a physical means of preventing writing to them. No software could bypass that, no matter what. It had to be flicked physically and manually by a human being.
Modern SD cards and SD card converters have a physical … Continue reading Why did they stop adding physical "write protect" mechanism?
I’d like to be able to identify licenses plates as they enter our cul-de-sac. My question is triggered by a comparison between an Arlo Pro 4 and an iPhone 12. The iPhone produces extremely high quality images and I think acceptable for w… Continue reading Expectation of surveillance camera vs iphone. Resolution vs field of view [migrated]
I need to safely dispose of about 30 federal folders. That means 95% of the documents will be shredded and the rest stored. I bought a small shredder for private people (professional shredders are too expensive) and now I see that the effo… Continue reading As a private individual, cleanly destroy a large number of paper documents. Are there alternatives to the consumer shredder?
I watched a documentary where hackers entered a victim’s house by pretending to be from the ISP and then connected a box to a router in order to spy on all of the victim’s traffic. Later, the hackers retrieved many passwords, e.g., iCloud … Continue reading What is the name of the box that hackers connect to a router in order to spy on all your traffic?
The question is mainly stated in the title. I was wondering what kind of attacks can be launched on such a setup, where someone has access to a running OS with locked screen (needs password for the user to enter). One possibility I can thi… Continue reading What type of attacks can be carried against an OS with FDE, if we assume OS and FDE are implemented correctly?
Whenever I leave my computer for the bathroom or anything inside the living space, I press WinKey + L to enter the "Lock Screen" mode. (If I go outside, I turn it off completely.)
Let’s say that somebody is in my house. I lock my… Continue reading Does Windows 10 read/run/care about USB devices plugged in "Lock Screen" mode?
I’ve seen this question: Is it possible to determine if the BIOS has been modified between two points in time?
On my Linux PC, I’ve made a script that checks the MD5 hash of the boot partition to prevent evil maid attack. Also it check the… Continue reading Detecting BIOS changes on PC