Suppose Alice wants to send encryptions (under a one-time pad) of $m_1$ and $m_2$ to Bob over a public channel. Alice and Bob have a shared key $k$; however, both messages are the same length as the key $k$. Since Alice is extraordinary lazy (and doesn't know about stream ciphers), she decides ...

The usual solution is to hire a professional disposal contractor to turn up with a shredding truck, and not only shred all the records while you watch if necessary, but provide a signed log evidencing that (which can be essential for certain types of documentation.) In an emergency your solution...

I am looking for work. And almost every interview revolves to a considerable extent about why I was laid off in my previous job. I was given some reasons but what I really suspect, is that a part of the reason was fussball. His reaction to being beaten worried me sometimes. And basically, yes...

I've noticed increased frequency of ransomware questions around Stack Exchange. Some of the people I remotely know had their devices recently infected as well. I'm starting to be concerned. When people ask me how to avoid viruses, I typically tell them things like not to download files from Russ...

Malware files execute themselves after downloading them. Let's look at it from the point of view of a piece of ransomware like CryptoLocker, from Wikipedia: Crypyowall 3.0, uses a payload written in JavaScript as part of an email attachment, which downloads executables disguised as JPG ...

My father's computer is now infected with CryptoWall 3, according to the link below. http://www.bleepingcomputer.com/virus-removal/cryptowall-ransomware-information#CryptoWall Is there a way to decrypt the files? I will try to recover them but according to the link, the virus safe deletes the c...

I started working with security in embedded devices and a term as secure boot, root of trust, root keys etc started coming in. The thing I don't understand how Boot ROM can be secured as People have been changing stock ROMS to custom ROMS.

I believe that I have several USB memory sticks infected with trojan(s). The memory sticks are data drives (not bootable). They appear to be carrying the binary code of a trojan in its inactive, uninstalled, form. They were collected in the course of cleaning-up a major security incident. Mor...

This is a backslash \. If you read the slash from left to right it starts at the top and goes down - hence it is a downslash. If you read the slash from top to bottom it starts on the left - which in our culture represents back direction - and continues to the right - which represents the forw...