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by boracay
4181 days ago
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Hm. I think the most important lesson here is that we need to treat "communication data"[0] more like we treat financial or medical data. If there isn't already there should be a rule in security that says that anything that's actively being used can't also be secure. They had year and year of data just lying around that people had mentally filed under "communication". It's kind of like web security where you lock down all your servers and then some developer leaks all the credentials on pastebin. [0] There's probably a better word for this. A basically mean volatile data i.e. e-mail, working documents, logs etc. |
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There's more you have to consider as well, you don't want to actually just archive anything older than a year. You want to set a rule that says: "archive anything created more than a year ago that hasn't been accessed in the last 3 months".
Further, there's all sorts of documents like the ones mentioned in the article that should be continuously monitored for and quarantined "passwords.txt" or Word docs with Social Security or Credit Card numbers in them.
Then you can get really sophisticated and start doing heuristic analysis of user behavior, setting alerts when Jim in accounting's account starts accessing marketing plans or when the account activity spikes beyond 5x what their regular usage is tracked at.
Full disclosure: the company I work for - http://www.varonis.com - makes software that does all of these kind of tasks.