|
|
| Author |
Thread Statistics | Show CCP posts - 0 post(s) |
Mithridates VI
IMPSwarm
Negative-Feedback
1141
   |
Posted - 2013.05.02 10:03:00 -
[1] - Quote
Counterintelligence 101: Employment History Without EVE Account.
Counterintelligence 101: Your Enjin is not secure.
Everyone has a unique writing style. The larger the text sample available, the greater the accuracy with which you can lock down each individual author to a signature made up of a unique combination of habits, made up of such things as frequency of letters, punctuation count, syntax, paragraph count, misspellings, words per sentence, average word length, frequency of function words.
We're not going to get too technical here, because this is a 101 and I'm unwilling to post source code for my personal stylometric engine. Identify the player you are suspicious of. PROTIP: This should be all of them. If not, you're doing it wrong. Trawl through their posting history looking for irregularities and quirks. Check 'em out elsewhere on the internet if you have access to that as well. As I say, the larger the text sample, the greater your chance of success.
Find a misused turn of phrase or a funky spelling you're confident is unique to this poster. Search it on the forums. Often, you're best to use Google to search the forums by using the search terms "site:forums.dust514.com" or "site:dustsearch.com" if you want pre-edit posts. (That's another thing which is of use, by the way. Chribba doesn't update posts after they are edited, so often you'll find the originals on his site long after the poster hoped it was gone).
Use this method to narrow down the list of potential alternate accounts. This is usually more efficient than cross-referencing every post on the forum, which requires something like Scrapy or a similar method of turning the entire forum into a useful database, you'll also need to look into how to create a corpus in Signature in the next step to combine the posts of each user into a meaningful collection.
Depending on the uniqueness of the quirk you've found, you may not require further evidence. If you do, save a large sample of the player's posting history into a text file and download Signature which is a free stylometric analysis program. Now, save a similar sample of the posting history of the alt you have discovered. The larger these samples are, the more accurate the test will be. In addition to these, save samples from 5 randomly selected players. Make a txt file out of each of these and feed them into Signature. For 101 purposes, the closer the lines are to each other in the graph and the closer the numbers are, the more similar the signatures of the authors of the posts. Better instructions are available on the website.
The next step is to take these probabilistic results and use them to inform your security decisions or future interactions with your members. Better safe than sorry. |
Mithridates VI
IMPSwarm
Negative-Feedback
1144
|
Posted - 2013.05.02 10:24:00 -
[2] - Quote
steadyhand amarr wrote:Tbh a good spy would invent q whole new persona includeing how they write so this method will only catch the rookies still good thing to have :-)
Many try and then fail when the factors which are more subconsciously influenced are considered in isolation from the others.
E z enuf to tipe lyk an idiot but den ur sytax and stuff r stil teh same. |
Mithridates VI
IMPSwarm
Negative-Feedback
1144
|
Posted - 2013.05.02 10:26:00 -
[3] - Quote
skinn trayde wrote:the whole writing style analysis goes out the window if those alts are never used to post on forums...
Clearly alts who you don't have text samples from are considerably less vulnerable to text analysis, yes...
I was going to just let that be an unspoken, universally understood truth but you're welcome to spell it out like that. |
Mithridates VI
IMPSwarm
Negative-Feedback
1145
|
Posted - 2013.05.02 10:40:00 -
[4] - Quote
skinn trayde wrote:Mithridates VI wrote:skinn trayde wrote:the whole writing style analysis goes out the window if those alts are never used to post on forums... Clearly alts who you don't have text samples from are considerably less vulnerable to text analysis, yes... I was going to just let that be an unspoken, universally understood truth but you're welcome to spell it out like that. never let it be said that I fail to state the obvious :-)
Breaking: Bulletproof vests ineffective against chemical warfare.  |
Mithridates VI
IMPSwarm
Negative-Feedback
1438
|
Posted - 2013.05.15 10:57:00 -
[5] - Quote
BRAIN-MATTER-SPLATTERER NEURALGIA wrote:Y'all are very funny, now please tell me exactly how you plan to catch a spy & then deliver the hard evidence in time before that member has no clue what your even going on about & figures you don't like them & backs out of your corp, figuring you already planned on doing just that because you probably had some idle wild hate for them somewhere within yourself.
What are you rambling about? Why on earth would you involve a suspected spy in your background check by being suspiciously silent or by talking to them about it? |
|
|
| |
|