The tag has no wiki summary.

learn more… | top users | synonyms

0
votes
1answer
763 views

mprotect at kernel level

What would happen if a kernel-level process sets some of its memory pages as PROT_NONE with mprotect and another kernel-level process tries to read one of these protected pages? What is the ...
7
votes
5answers
5k views

How can I protect myself from Evercookies?

I recently learned about the existence of the Evercookie. Is there any way I can prevent an Evercookie being placed on my computer without disabling JavaScript or cookies entirely? I don't want ...
4
votes
2answers
281 views

Hardware Level Write Protection for a CD-R

Let's say you burn a CD-R and it is finalized. Later, if you put it into a CD drive with some OS running, is it possible for the OS to write to it ? Obviously, this shouldn't typically happen, ...
17
votes
3answers
2k views

Could my bank's two-factor authentication be hacked?

When I attempt to log in to my bank, an SMS code is sent to my phone. I then type this nine-character code into the bank's Web site, to login to my account. Is this vulnerable to attack, without ...
2
votes
3answers
9k views

How can I send and receive untraceable emails? [duplicate]

I have been receiving threatening emails from someone, and I don't want them to know my location for my safety's sake, but I need to send them a "Cease and Desist" notice. This person has great ...
2
votes
1answer
394 views

Linux Runtime Memory protection [closed]

I'm searching for a solution to protect process memory at runtime level in Linux (just like GameGuard in Windows). I googled many times but didn't get any useful information. Does anyone know any ...
2
votes
1answer
123 views

Security of data distributed to different cloud providers

This is an purely educational question: Suppose we have different cloud storage providers. Imagine a files as a stream of bits and we save each 'th byte on the ( module )'th cloud provider's storage ...
15
votes
4answers
1k views

What measures should be taken when losing an iPad

When losing a tablet that has been used to access email accounts , beside changing the passwords, is there anything more can be done? What are the most common problems that might occur if the iPad ...