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awarded  Good Answer
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revised Can “cat-ing” a file be a potential security risk?
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comment Can “cat-ing” a file be a potential security risk?
@IvanKovacevic Yes, see my addendum. ( My first answer was too quick. sorry ;)
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revised Can “cat-ing” a file be a potential security risk?
added 661 characters in body
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awarded  Nice Answer
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answered Can “cat-ing” a file be a potential security risk?
Apr
9
awarded  Popular Question
Mar
22
comment How secure is my system?
Good question! Go forward in continuing to ask this (even to yourself)! You're on the right way!
Mar
22
comment Does Tor Hidden Service Protocol provide more threat protection than a standard HTTPS session?
Bank's IT prefer to delegate security responsabilities to experimented pro (like CISCO)... This means: There are very few IT admin in banks, that know how SSL do work... Unfortunately.
Mar
19
comment Generate Passphrase from the data & encrypted data
When you say generate did you mean retrieve?
Mar
11
comment Can a Ubuntu live usb be infected with spyware/ virus?
@aks md5 and iso is independant. md5 are made for that kind of verification. iso is a read-only filesystem holding a lot of meta information like owner, date of creation, ECC methods and so on. You may come in pain if you try to build an iso that match byte per byte the original iso (even if you know the tool and the syntax previously used to build them.). But anyway you could do has you think... Let my know in case of success!
Mar
10
comment Can a Ubuntu live usb be infected with spyware/ virus?
Already answered: Yes it is possible, but no you could not verify md5 from a re-created iso. Why is already explained too! Working around md5sum.txt as (already) explained is the right way. And no: md5sum.txt don't hold meta datas, you could simply read it by using more or less.
Mar
10
comment Can a Ubuntu live usb be infected with spyware/ virus?
@ask if your original iso is ubuntu-13.10-desktop-i386, the md5sum of this file must be 5765805c23215de23f7775d84a79e140
Mar
10
comment Can a Ubuntu live usb be infected with spyware/ virus?
@aks No, yes, but no: You could effectively re-create same iso, meaning same behaviours, but it's a little complicated because of boot-image syntax. And even, you're new iso will retain meta informations like creation date, ensuring md5sum won't match. The right solution is to compare md5sum.txt on both keys and run md5sum -c <md5sum.txt from usbkey root path (in md5sum.txt path are relative).
Mar
10
comment Can a Ubuntu live usb be infected with spyware/ virus?
Once you cd (change dir) to the root of your mounted usb. md5sum <md5sum.txt take the content of file md5sum.txt and check each file. At end, md5sum return result code $?==0 if all files was checked without corruption. So with && the command echo will be run only if previous command return RC=0.
Mar
10
comment Does reinstalling ubuntu eliminates all existing rootkits/ malware/spyware/ virus etc?
Switching power off before booting from CD is not very time expensive! (And could maybe prevent warm-boot issues)
Mar
10
comment Outsourcing software development and its effect on security
Outsourcing security is already what you do when buying firewall and/or vpn propretary solution (like cisco).
Mar
10
revised Can a Ubuntu live usb be infected with spyware/ virus?
Add step-by-step explanation
Mar
10
comment Can a Ubuntu live usb be infected with spyware/ virus?
@user2917687 have a look at my edit.
Mar
10
revised Can a Ubuntu live usb be infected with spyware/ virus?
Add step-by-step explanation